1.

notconsideringthe electronicspinthe deggenercy of thedegeneracyof thesecondexcitedstateof H^(-)is :

Answer»


Solution :
degaenargy = 9FOR H- atom because3s=3p =3d LTBR. For `H^(-)`1SLT 22slt2p lt3s
lastexcitedstate2s
2ndexcitedsate2p
Hence, degeneracy of 2nd excited state=3


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