Question

hannis
27.) The energy of an electron in the 3s orbital (eci
a.) 1.5eV
b.) -13.6ev
c.) 3.4ev
d.) -4.53eV​

Answer 1

Answer:

the energy of an electron in the 3S orbital of H-atom is -1.5 eV.

Answer 2

Answer:

-1.5eV

Explanation:

1. Energy (E) of n=1

= -13.6Zsquare÷nsquare eV

= -13.6×1÷1

= -13.6ev

2.For n=3

E= -13.6÷3square

E= -13.6÷9 eV

E= -1.5eV

Therefore the energy of an electron in the 3s orbital is H-atom is -1.5eV