Question

7.
First shell energy of Het ion is -54.4 eV. Then
energy of its second shell is :-
(1) -54.4 eV
(2) -13.6 eV
(3) -27.2 eV
(4) +27.2 eV

Answer 1

Answer:

Explanation:

Answer:

4) 54.4

Explanation:

E = (13.6xZ^2) / n^2 ev

where, n = number of orbit = 1

Z = atomic number = 2 (He)

E = (13.6x2^2) / 1^2

E = (13.6x4) = 54.4 ev

hope this helps you....!!