When an electron drops from a higher energy level to a low energy level, then [AMU 1985] (a) Energy is emitted (b) Energy is absorbed (c) Atomic number increases (d) Atomic number decreases
Electrons drops from higher level to lower energy level by emitting the energy in the form of packet of energy (photon). Likewise, electrons jumps from lower energy level to higher energy level, by absorbing energy. The lowest energy level that an electron exist is known as its ground state.
b
