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Bond Order by MOT

a Elements X,...

Question

(a) Elements X,Y and Z have atomic numbers 6,9 and 12 respectively. Which one

(i) forms an anion
(ii) forms a cation

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Solution

(a)

(i) Element Y forms an anion. Its electronic configuration is 2,7. It gains 1 electron to achieve octet state.

(ii) Element Z forms a cation. Its electronic configuration is 2,8,2. It loses 2 electrons to achieve octet state.

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