Question

If the energy of an electron in a hydrogen atom is -Rh/9, then the possible number of orbitals in this hydrogen atom is

Answer 1

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All orbitals that have the same value of n are said to be in the same shell (level). For a hydrogen atom with n=1,

• the electron is in its ground state;

if the electron is in the n=2 orbital, it is in an excited state.

The total number of orbitals for a given n value

is -

n2

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