Answer:
2n²
Explanation:
the number of electrons in energy level is given by 2n² where n is the energy level.
for n=1 the number of electron will be
2(1)²= 2 electrons
For n=2 the number of electrons will be 2(2)²= 2*4=8
For n=3 the number of electrons will be 2(3)²= 2*9=18
and so on.
the number of electrons can be calculated using 2n² where n is the number of shells
nth shell can in principle hold up to 2(n²) electrons.
