How many degenerate orbitals are needed to contain six electrons with two of them unpaired?

Answers

Answer 1
Four orbitals are needed to contain six electrons if two electrons are unpaired. According to Hund's rule, degenerate orbitals are filled evenly. Electrons minimize the force of repulsion by orbiting at a distance.
Answer 2
Final answer:

In this case, we are dealing with the 2p orbitals. The 2p sublevel consists of three orbitals, so we need to draw all three orbitals even if one or more are unoccupied. According to Hund's rule, the sixth electron enters the second of those p orbitals, with the same spin as the fifth electron.

Explanation:

The question is asking how many degenerate orbitals are needed to contain six electrons with two of them unpaired. In this case, we are dealing with the 2p orbitals. The 2p sublevel consists of three orbitals, so we need to draw all three orbitals even if one or more are unoccupied. According to Hund's rule, the sixth electron enters the second of those p orbitals, with the same spin as the fifth electron.


Related Questions

On the periodic table the number of protons in an atom of an element is indicated by its

Answers

find your element on the periodic table. More ↓
2. Locate the element’s atomic number. ↓
3. Determine the number of electrons. ↓
4. Look for the atomic mass of the element. ↓
5. Subtract the atomic number from the atomic mass.
Hello There!

It would be the Atomic Number.

Hope This Helps You!
Good Luck :)

The elements in group 7a are known by what name? transition metals halogens alkali metals alkaline earth metals noble gases

Answers

Halogens are in group 7!!!!!!
Final answer:

The elements in group 7A of the periodic table are known as halogens, which include fluorine, chlorine, bromine, iodine, and astatine.

Explanation:

The elements in group 7A of the periodic table are known as halogens. This group includes fluorine, chlorine, bromine, iodine, and astatine. In the periodic table, various groups have specific names. For example, group 1 elements are called alkali metals, group 2 elements are known as alkaline earth metals, group 18 elements are termed noble gases, and similarly, group 7A elements are named as halogens. Halogens have similar properties as they all have seven electrons in their outermost shell and readily gain an electron to achieve a stable electron configuration.

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During which stage of technological design are prototypes built

Answers

its: Implement a solution

Answer:

option A, implement a solution.

Explanation:

Give an example of something that is observable but does not contain matter.
Explain.

Answers

 The best example I can give that is observable but does not contain matter is:

sunlight or simply light

 

Light does not contain matter because it is a beam of energy or to be specific made up of packet of photons.

 

The group of elements that tend to be found as toxic gases or liquids in their pure form including chlorine, bromine and iodine are called alkali metals true or false

Answers

Final answer:

The group of elements including chlorine, bromine, and iodine are called halogens, not alkali metals. Halogens are highly reactive nonmetals in Group 17, while alkali metals are reactive metals in Group 1.

Explanation:

The statement that the group of elements including chlorine, bromine, and iodine are called alkali metals is false. These elements actually belong to a group known as the halogens, which are part of Group 17 in the periodic table. The halogens include fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At), and are notorious for being highly reactive nonmetals. The term halogen means "salt-former," which indicates their tendency to react with alkali metals and alkaline earth metals to form halide salts. Chlorine exists as a toxic gas, bromine as a liquid, and iodine as a solid at room temperature.

In contrast, the alkali metals make up Group 1 in the periodic table and include elements such as lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These elements are quite different from the halogens, as they are highly reactive metals. With the exception of hydrogen, which is often placed in Group 1 but is not a metal, alkali metals tend to combine with halogens to form compounds like table salt (sodium chloride).

The diagram below shows the different phase transitions that occur in matter.



Which best describes the process that arrow 1 represents?
Molecules are speeding up during boiling.
Molecules are depositing as ice on a surface.
Molecules are slowing down during condensing.
Molecules are moving from stationary positions.

Answers

The answer is certainly A.

Answer : Option A) Molecules are speeding up during boiling.

Explanation : As shown in the above image it is clearly observed that the molecules are been transformed from liquid to gaseous state. Which means that the intermolecular distance between the molecules is increasing as they are boiling and getting transformed into gaseous form. They are speeding up to form gas from liquid state and achieve stability as the heat is supplied in greater amount. Boiling of liquid is causing the liquid molecules to speed up and get transformed into gaseous molecules.

Fill in the blanks: when an atom absorbs energy, the electrons move from their _________________ state to an _________________ state. when an atom emits energy, the electrons move from a(n) _________________ state to their _________________ state and give off _________________.

Answers

Fill in the blanks: when an atom absorbs energy, the electrons move from their (ground) state to an (excited) state. when an atom emits energy, the electrons move from a(n) (excited) state to their (ground) state and give off (energy)

Answer:

When an atom absorbs energy, the electrons move from their ground state to an Excited state. when an atom emits energy, the electrons move from an excited state to their ground state and give off energy(radiation).

Explanation:

In An atom electrons sphere the positively charged nucleus in different energy orbits.

The low energy orbits present near the nucleus and high energy orbits are farther from the nucleus. when an electron absorbs energy it becomes excited and jumps to a high energy state and when it loses energy as the radiation it gets back to its ground state or low energy state.

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Oxygen has an atomic number of 8 and most commonly, a mass number of 16. thus, what is the atomic mass of an oxygen atom?

Answers

oxygen has atomic mass 16 amu

What are the subatomic particles that are responsible for comprising the atom's atomic mass?

Answers

Proton and Neutron are responsible

[03.04]Based on the electronegativity values shown in the table below, which element would you expect to form a nonpolar covalent compound when combined with chlorine (Cl)? Pauling scale periodic table showing Cl is 3.0; Cu is 1.9; F is 4.0; Li is 1.0; N is 3.0 Cu F Li N

Answers

The answer is nitrogen c.

Answer:

C. Nitrogen

Explanation:

Nonpolar covalent bonds are a type of bond that occurs when two atoms share a pair of electrons with each other. An example of a nonpolar covalent bond is the bond between two hydrogen atoms because they equally share the electrons.

A bond between 2 nonmetal atoms that have the same electronegativity and therefore have equal sharing of the bonding electron pair.

The element with the same electronegativity value aas Cl is the correct option.

This is Nitrogen.

If a solid forms when two ionic solutions are mixed together in a test tube, what does this indicate?

Answers

If a solid forms when two ionic solutions are mixed together in a test tube, it is an indication of a chemical change

The precipitaion os the solid indicates that a new product has been formed which is not soluble.

When a solid ionic compound is put in water, the compound is dissolved by ionizing (the ions separate and remain in aqueous phase). If you combine two ionic solutions and see a solid precipiate is becasue the ions have combined and form a new compound which is not soluble.

Find the ratio of the volume divided by the temperature for the first data pair. Use significant figures.
V / T = 0.72/276

Answers

From the pair of values given, the ratio of the volume to the temperature for the first data pair is, 0.0026 cm^3/K

What is a ratio?

A ratio is a comparison betweentwo quantities showing how much one quantity cobtains another.

From the data provided, the first data pair is as follows:

temperature = (276 K)volume = 0.72 cm^3

Ratio of volume to temperature = volume/temperature

Ratio = 0.72/276

Ratio = 0.002608 cm^3/K

The significant rule for division is the least number of significant figures used in the operation.

The least significant figure of the values given is 2.

Therefore, the ratio of the volume to the temperature for the first data pair is 0.0026 cm^3/K

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Answer:

They're both 0.0026

PLEASE HELP!!! EMERGENCY!

Which characteristic of four different dinosaur fossils makes a dinosaur most similar to the present-day birds?

A- Flexible Wrist
B- Flapping ability
C- Flight Feathers
D- Primitive Feathers

Answers

I learned this a week a week ago its flight feathers btw this is not a emergency 

When a chemical reaction takes place, the starting substances (substances that will undergo the change) are called _____.

Question 2 options:

products


mixtures


reactants


yeilders

Answers

reactants sound like it could be right. ;)

What determines the horizontal arrangement of the periodic table?

Answers

The period determines the horizontal arrangement of the periodic table, I think anyways

Nacl , or halite, dissolves in water. which type of bond is most abundant which allows it to dissolve?

Answers

Intermolecular bonding:
Water is a polar molecule exhibit dispersion forces and hydrogen bonding
Salt is a polar molecule exhibit dispersion forces and dipole dipole bonding

Same bonding capacity therefore similar bonding capacity, therefore salt able to dissolves in water

If the o2 is collected over water at 25 c (298 k) and 724.0 mm hg total pressure, how many mols o2 will a 1.00 l sample of collected gas contain?

Answers

To answer this item, it is assumed that O2 is an ideal gas such that it follows the ideal gas law.

    PV = nRT

Solving for n,
    n = PV / RT

where n is number of moles, P is pressure, V is volume, R is the universal gas constant, T is the temperature. 

Substituting the known values,
     n = (724 mmHg/760 mmHg/1 atm)(1 L) / (0.0821 L. atm/mol.K)(298 K)

Simplifying,
   n = 0.0389

Hence, the value of n is 0.0389. 

How many grams of c2h5oh must be burned to raise the temperature of 400.0 ml of water from 20.0 ∘c to 100.0 ∘c? (the specific heat of water is 1.00 cal/g⋅∘c or 4.184 j/(g⋅∘c)?

Answers

From tables, the heat of combustion of ethanol (C₂H₅OH) is 29.7 kJ/g.

Given:
V = 400 mL of water
ΔT = 100 - 20 = 80°C, temperature rise
c = 1.00 cal/(g-°C), specific heat of water = 4.184 J/(g-°C)

Because the density of water is approximately 1.0 g/mL. the mass of water is
m = 400 g.

Let x = grams of ethanol that should be burned to make the water rise
by 80 °C.
Then
(29.7 x 10³ J/g)*(x g) = (400 g)*(4.184 J/g-°C))*(80 °C)
29.7 x 10³x = 1.339 x 10⁵
x = 4.5 g

Answer: 4.5 grams

Which element has the same number of energy levels as aluminum (Al) and the same number of valence electrons as calcium (Ca)?
A. Beryllium B. Sodium C. Potassium D. Magnesium

Answers

The correct answer is Magnesium (Mg)

The element that has the same number of valence electrons with calcium (Ca) and aluminium (Al) energy levels is D Magnesium.

Since aluminium (Al) belongs to the third period of the periodic table, it has three energy levels (electron shells). As Group 2 of the periodic table correlates to the number of valence electrons, calcium (Ca) has two valence electrons.

Aluminum (Al) and magnesium (Mg) both have three energy levels and two valence electrons (Ca). As a result, magnesium (Mg) satisfies the requirements.

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In the carbon-oxygen cycle, carbon dioxide is used for _____ and oxygen is used for _____. respiration, photosynthesis ozone, respiration photosynthesis, respiration evaporation, condensation

Answers

photosynthesis ozone and condensation

photosynthesis ozone and condensation good day


Which of the following describes the characteristics of a gas?
Made up of particles packed closely together, having both definite shape and definite volume
Made up of particles packed relatively close together, having an indefinite shape but a definite volume
Made up of particles that are far apart from each other, having both indefinite shape and indefinite volume
Made up of positively charged particles and negatively charged electrons, having both indefinite shape and indefinite volume

Answers

I think made up of  particles that are far apart from each other, having both indefinite shape and indefinite volume describes the characteristics of a gas. 

Answer: The correct statement is made up of particles that are far apart from each other, having both indefinite shape and indefinite volume

Explanation:

There are 4 states of matter:

Solid state: In this state of matter, the particles are closely packed and they do not have any space between them. Thus, this state of matter has the highest intermolecular forces of attraction between them.  

This state have a definite shape and volume.

Liquid state: In this state of matter, the particles are present in random and irregular pattern. The particles are closely arranged but they can move from one place to another. The intermolecular forces between the particles are less as compared to the solid state.

This state have a definite volume but does not have a fixed shape and they can take up the shape of container in which they are kept.

Gaseous state: In this state, the particles are loosely arranged and have a lot of space between them. Thus, this state of matter has the lowest intermolecular forces of attraction between them.

This state have indefinite volume as well as shape. It can take up the volume and shape of the container in which they are kept.

Plasma state: In this state of matter, a hot ionized gas consisting of equal number of positively charged ions and negatively charged electrons are present.

This state have indefinite volume as well as shape.

Hence, the correct statement is made up of particles that are far apart from each other, having both indefinite shape and indefinite volume

Why is a very small amount of cerium oxide nanoparticles need: A) the nanoparticles are elements
B) the nanoparticles are very reactive
C) the nanoparticles have a high surface area of volume ratio

Answers

have a high suface area to volume ratio

A very small amount of cerium oxide nanoparticles is needed due to their high surface area to volume ratio, which enhances reactivity and efficiency in chemical applications such as catalysis.

The answer is C) the nanoparticles have a high surface area to volume ratio. This high surface area to volume ratio is significant because it provides more active sites for reactions to occur. In the field of nanotechnology, substances like cerium oxide nanoparticles demonstrate different and often enhanced properties when compared to their bulk counterparts due to their tiny size (between 1 and 100 nm). As particles become smaller, their surface area becomes larger in comparison to their volume, which is particularly significant for chemical reactions which typically occur on surface sites.

The properties that arise from this high surface area to volume ratio include lower melting points, higher vapor pressures, and increased reactivity. Specifically, nanoparticles like cerium oxide are highly efficient in applications such as heterogeneous catalysis, where reactions occur at the surface of the catalyst. A small amount of these nanoparticles can provide a large surface area, thus making reactions more efficient and reducing the amount of material required.

A 0.08541 g sample of gas occupies 10.0-ml at 288.5 k and 1.10 atm. upon further analysis, the compound is found to be 13.068% c and 86.932% br. what is the molecular formula of the compound? (order: c, x)

Answers

C2Br2 First, we need to determine how many moles of the gas we have. For that, we'll use the Ideal Gas Law which is PV = nRT where P = pressure (1.10 atm = 111458 Pa) V = volume (10.0 ml = 0.0000100 m^3) n = number of moles R = Ideal gas constant (8.3144598 (m^3 Pa)/(K mol) ) T = Absolute temperature Solving for n, we get PV/(RT) = n Now substituting our known values into the formula. (111458 Pa * 0.0000100 m^3) / (288.5 K * 8.3144598 (m^3 Pa)/(K mol)) = (1.11458/2398.721652) mol = 0.000464656 mol Now let's calculate the empirical formula for this compound. Atomic weight carbon = 12.0107 Atomic weight bromine = 79.904 Relative moles carbon = 13.068 / 12.0107 = 1.08802984 Relative moles bromine = 86.932 / 79.904 = 1.087955547 So the relative number of atoms of the two elements is 1.08802984 : 1.087955547 After dividing all numbers by the smallest, the ratio becomes 1.000068287 : 1 Which is close enough to 1:1 for me to consider the empirical formula to be CBr Now calculate the molar mass of CBr 12.0107 + 79.904 = 91.9147 Finally, let's determine if the compound is actually CBr, or something like C2Br2, or some other multiple. Using the molar mass of CBr, multiply by the number of moles and see if the result matches the mass of the gas. So 91.9147 g/mol * 0.000464656 mol = 0.042708701 g 0.0427087 g is a lot smaller than 0.08541 g. So the compound isn't exactly CBr. Let's divide them to see what the factor is. 0.08541 / 0.0427087 = 1.99982673 1.99982673 is close enough to 2 to within the number of significant digits we have for me to claim that the formula for the unknown gas isn't CBr, but instead is C2Br2.

PV = mRT: gas law.

M = [tex]\frac{n}{m}[/tex] : molecular mass

Use: M = [tex]\frac{mRT}{PV}[/tex]

Where

m = 0.04343 g

P = 1.10 atm

V = 0.0100 L

R = 0.08205746 (14) L atm K  mole  

T = 293.0 K

M: the molecular mass of the gas.

Then take the mass of this molecule, the molecular mass of the atom (C & Cl), and also the proportion of mass given to search out the amount of moles per mole of gas.

Further explanation

The chemical formula is a component of a formula, that has associate understanding of a substance that determines the kind and a relative range of atoms that area unit in this substance. Or in different languages, a formula are often given that contains data concerning the atoms that form up a selected chemical composition.

Chemical formula is split into 2 specifically chemical formula and formula. The formula announces that the formula mentioned will prove the molecules of the mix atoms. whereas the formula is that the original formula of a composition. The chemical formula are often determined if the relative molecular mass is thought.

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Class: highschool

Subject: Chemistry

Keywords: Mole, Formula, Mass

What metric unit is used for measuring an eyelash?

Answers

Milimeters is the best answer

why scientists use mass instead of weight for their measurements

Answers

An objects weight is how hard gravity is pulling on it. We think the weight is the same everywhere ... because we all live on the surface of the planet Earth! But in orbit it would not push on the scales at all. The scales would show 0 kg ... but themass is still 100 kg !

A beer maker is using yeast to make his favorite brew. how does yeast produce ethanol? through the reduction of acetaldehyde, derived from pyruvate through the oxidation of acetaldehyde, derived from pyruvate through the direct reduction of pyruvate, similar to lactic acid fermentation directly from the reduction of glucose through the reduction of lactic acid

Answers

In brewing, yeast is used for the fermentation step, which is the conversion of sugars into carbon dioxide gas (CO2) and ethyl alcohols (etOH). Yeast cells require complex enzymes for the fermentation of glucose based sugars into alcohols and carbon dioxide. The process involves both aerobic phases where yeast proliferate on a log scale followed by an anaerobic phase where oxygen is deprived and C02 maintains the gaseous environment. The second phase also clarifies the product allowing for the conversion of less savory alcohols into more palatable alcohols like ethyl alcohol.

What 2 groups of rocks are formed from all 3 kinds of rocks?

Answers

In theory, all 3 can make up each Sedimentary, Metamorphic, and Igneous rocks. 

However, the progression of metamorphosis is really kind of linear, and it is only possible to metamorphose a Metamorphic rock further, so the answer to this question would be: 

Igneous and Metamorphic rocks

How is the mass in grams of the element converted to amount in moles

Answers

The mass in grams is simply divided by the relative atomic mass of that element as in the formula: Mole=mass/relative atomic mass. for ex-. To find amount in moles of 46 grams of Sodium(Na). We know that relative atomic mass of sodium from periodic table is 23; Therefore, amount in moles of sodium=46/23=2 moles.

2na + cl2 → 2nacl in this chemical reaction a very reactive metal, sodium, combines with a poisonous gas and results in the formation of ordinary table salt. in the chemical reaction ______________ is the product.

Answers

the answer is salt hope this helps

Answer:

NaCl is the product

Explanation:

Is soda an element compound heterogeneous mixture or solution?

Answers

Soda – If un-agitated, it may be a solution uniform, in one phase, and composed of more than one material such as coloring, sugar, water, etc.
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