If the magnetic moment of a dioxygen species is 1.73 B.M, it may be

Question

If the magnetic moment of a dioxygen species is 1.73 B.M, it may be, O 2 or O 2 -, O 2 , O 2 - or O 2 -, O 2 , O 2 +, O 2 - or O 2 +

MARKS App · Accepted Answer

Magnetic moment = 1.73 BM μ = n ( n + 2 ) 1.73 = n ( n + 2 ) On solving n = 1 Unpaired electron (n) = 1 O 2 + = σ 1 s 2 , σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p 2 2 , π 2 p x 2 = π 2 p y 2 , π * 2 p x 1 = π * 2 p y O 2 - = σ 1 s 2 , σ * 1 s 2 , σ 2 s 2 , σ * 2 s 2 , σ 2 p 2 2 , π 2 p x 2 = π 2 p y 2 , π * 2 p x 2 = π * 2 p y 1 Hence O 2 - and O 2 + have one unpaired electron.

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