JEE Advanced2024Paper 2CHEM-I
Q.
According to Bohr's model, the highest kinetic energy is associated with the electron in the
- A
First orbit of H atom
- B
First orbit of He
- C
Second orbit of He
- D
Second orbit of Li
Solution
In the Bohr model, the kinetic energy of an electron in the orbit of a hydrogen-like species is
The quantity decides the ranking. Computing each:
H atom, :
He, :
He, :
Li, :
The largest value, , corresponds to the first orbit of He.