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An element forms electron rich hydride. The elctornic configuration of the element is

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An element forms electron rich hydride. The elctornic configuration of the element is

(a)  [He]  2s2 2p2

(b)  [He] 2s2 2p1

(c)  [Ne] 2s22p2

(d)  [He] 2s2 2p5

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(d)   [He] 2s2 2p5

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