Question

What is meant by "the energy of an electron is quantized"?

a. The quantity of electron energy can be measured.
b. Each electron around an atom has a discrete measure of energy.
c. The quantity of electron energy changes as it moves around the nucleus.
d. All of the above

Answer 1

Answer: B: Each electron around an atom has a discrete measure of energy.

Answer 2

a and B are correct

Step-by-step explanation:

The energy of an electron associated with one shell around the nucleus is quantized. And is given by the formula

`E= -(13.6 eV)/(n^2)`.

where n= shell number 1,2,3...

It is true that energy of an electron cab be measured and Each electron around an atom has a discrete measure of energy associated with it. Moreover, quantity of electron energy remains constant in a shell and changes only when the electron changes its shell.

hence C is incorrect.