Question

If an electron jumps from orbit $A$ to orbit $B$ it loses energy while when it jumps from $C$ to $B$ it gains energy. Arrange the orbits in the increasing order of distance from the nucleus.

• A. $A<B<C$
• B. $C<A<B$
• C. $C<B<A$
• D. $A<C<B$

Answer 1

Answer: (C)

$C<B<A$

When an electrons goes from lower debit to higher orbit it gains energy while when it comes to lower orbit from higher orbit it releases energy.So,the correct order will be.

$C<B<A$

Hence, option $C$ is correct answer.