What is the electronic configuration of an element in the first excited state which is isoelectronic with O2.

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1 Answers

O has 8 electrons

O2 has 16 elecrons

Isoelectronic element to O2 is Sulphur with atomic no. 16 i.e it contains 16 electrons

Electronic configuration of S in ground state:

1s2 2s2 2p6 3s2 3p4

Electronic configuration of S in excited stage:

1s2 2s2 2p6 3s1 3p5

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