Question

Energy required to pull an electron from first orbit of hydrogen to infinity is 100units . What is the energy needed to pull an orbit from second orbit to infinity

Answer 1

25 units.

Explanation:

Given: Energy required to pull an electron from first orbit of hydrogen to infinity is 100 units.

Find: What is the energy needed to pull an electron from second orbit to infinity?

Solution:

The energy in an orbit is inversely proportional to n^2.

So the energy needed to pull an electron from second orbit to infinity = 25 units.

Answer 2

Answer:

25

Explanation:

In atom orbit, energy is given by,

E(n) = k/n^2 where k is constant.

According to your question, when n = 1, E(n) = 100=k.

so, when n = 2, E(n) = 25.