When hydrogen atom is in its first excited level, its radius is

When hydrogen atom is in it's first excited level, its radius is ________ it's ground state radius.

When hydrogen atom is in first excited level, its radius is….its ground state radius

When hydrogen atom is in first excited level, its radius is….its ground state radius

When hydrogen atom is in its second excited level, then its radius becomes

The ionization potential of the hydrogen atom is 13.6 V. The energy needed to ionize a hydrogen atom which is in its first excited state is about

Total energy of an electron in the ground state of hydrogen atom is – 136 eV. Its total energy, when hydrogen atom is in the first excited state, is :

the energy required to excite an electron in hydrogen atom to its first excited state is

the energy required to excite an electron in hydrogen atom to its first excited state is

The ratio of the energy of hydrogen atom in its first excited to second excited state is

The ratio of the energies of the hydrogen atom in its first to second excited state is