Question

A hydrogen atom initially in the ground state is excited by absorbing

Answer 1

Photon

Explanation

Hydrogen particle

1. On attaining an energy state more than its ground state by an electron than it is known as the excited state.  

2. An electron excited on getting extra energy by absorbing a photon or collide with another atom.

3. A Hydrogen particle comprises of one proton and one electron bounded altogether.

4. The proton refers to positive charge and electron refers to negative charge.