Question

ch 2 chemistry std 11​

Answer 1

According to hund's and Paul's principle:

electronic configuration of he is 1s^2 in which the 1s subshell contains 2 electrons with fullfilled orbital

whereas electronic configuration of ne is 1s^2 2s^2 2p^6 in which 1s and 2s subshell contains 2 electrons each also 2p contains 6 electrons with fullfilled orbitals

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Answer 2

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