Question 601: Atoms & Nuclei

Question

The energy of hydrogen atom in n
th
orbit is E
n
then the energy in n
th
orbit of singly ionised helium atom will be

Accepted Answer

As E
n
= $${{ - 2{\pi ^2}m{K^2}{Z^2}{e^4}} \over {{n^2}{h^2}}}$$
For helium
Z = 2. Hence requisite answer is 4E
n
.

Answer

4E
n

Answer

E
n
/4

Answer

2E
n

Answer

E
n
/2

Atoms & Nuclei