the more
an electron has,
the further away it can be from the
nucleus.
a-mass
b-energy

B

Explanation:

first, around the nucleus there are energy levels as we go further the energy of the level is increasing

second, each electron should has equal energy to the energy level in which it is rotating

so further we go more energy the electron has

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons