What happens when an electron absorbs energy?
A.
The electron moves from a lower energy orbital to a higher energy orbital.
B.
The electron falls into the nucleus.
O
C.
The electron moves from a higher energy orbital to a lower energy orbital.
O
D.
The electron loses its charge.
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A

Explanation:

this is because the electrons are attracted to the protons, the stronger the attraction and energy level the closer the electrons are to the nucleus. this moves them to a higher energy orbital. For example in a Bohr diagram.

14 days is the half-life of phosphorus-32

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.