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3 years ago

What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?

Chemistry

2 answers:

Lilit [14]3 years ago

8 0

Answer:

Energy-

and it can be added to an atom to cause a non-valence electron in the atom to temporarily become a valence electron

vazorg [7]3 years ago

6 0

Answer:

What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron is energy.

Explanation:

The normal state of the atoms, where all the electrons are occupying the lowest possible energy level, is called ground state.

The valence electrons are the electrons that occupy the outermost shell, this is the electrons in the highest main energy level (principal quantum number) of the atom.

So, a nonvalence electron occupies an orbital with less energy than what a valence electron does; in consequence, in order to a nonvalence electron jump from its lower energy level to the higher energy level of a valence electron, the former has to absorb (gain) energy.

This new state is called excited state and is temporary: the electron promoted to the higher energy level will emit the excess energy, in the form of light (photons), to come back to the lower energy level and so the atom return to the ground state.

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How long must you immerse equipmemt and utensils in a non-chlorine sanitizing solution

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3 years ago

Describe a dinner you would like to eat that includes all the main nutrients, but is low in the nutrients that you should limit.

IceJOKER [234]

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2 years ago

Consider a bent molecule, such as H2Se, in which the central atom has two lone pairs of electrons. The electronegativities of H

Shalnov [3]

Answer:

Based on these values and on consideration of molecular geometry, the H-Se bond can be considered almost _____non-polar___ and the molecule is __polar_____.

Explanation:

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3 years ago

g If a sample of 50 mL of ethyl benzene (bp = 136 C) was contaminated with 10 mL of ethyl acetate (bp = 77 C) what effect would

PolarNik [594]

Answer:

melting point will be higher than that of pure ethyl acetate

Explanation:

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2 years ago

Tim wants to store 0.122 moles of helium gas at 203 kPa and 401 K. Which is the volume of the helium gas needed for storage?

algol13

The volume of Helium gas needed for storage is 2.00 L (answer C)

calculation

The volume of Helium is calculated using ideal gas equation

That is Pv =nRT

where;

P( pressure) = 203 KPa

V(volume)=?

n(number of moles) = 0.122 moles

R(gas constant) = 8.314 L.Kpa/mol.K

T(temperature)= 401 K

make V the subject of the formula by diving both side by P

V=nRT/p

V={[0.122 moles x 8.314 L. KPa/mol.K x 401 K] / 203 KPa} = 2.00 L

3 0

3 years ago