Question

Which energy level requires the most energy to remove an electron?

A- the shell containing valence electrons
B-the next to outermost shell
C- the innermost shell
D- none of the sbove

Answer 1

The answer is c because the inner shell electron is closer to the nucleus.

Answer 2

I agree with the person above - C. the innermost shell is the energy level which requires the most energy to remove an electron, simply because it is so close to the core of the atom.