Among H _ 2 , H e _ 2 ^ + , L i _ 2 , B e _ 2 , B _ 2 , C _ 2 , N _ 2 , O _ 2 ^ - , and F _ 2 , the number of diamagnetic species is - (Atomic number : H = 1, He = 2, Li = 3, Be = 4, B = 5, C = 6, N = 7, O = 8, F = 9 )

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Correct answer: 5

H _ 2 ⇒ σ1 s ^ 2 (Diamagnetic) H e _ 2 ^ + ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 1 (Paramagnetic) L i _ 2 ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 (Diamagnetic) B e _ 2 ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 σ ^ * 2 s ^ 2 (Does not exist) B _ 2 ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 σ ^ * 2 s ^ 2 π2 p _ x ^ 1 = π2 p _ y ^ 1 (Paramagnetic) C _ 2 ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 σ ^ * 2 s ^ 2 π2 p _ x ^ 2 = π2 p _ y ^ 2 (Diamagnetic) N _ 2 ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 σ ^ * 2 s ^ 2 π2 p _ x ^ 2 = π2 p _ y ^ 2 σ2 p _ z ^ 2 (Diamagnetic) O _ 2 ^ Θ ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 σ ^ * 2 s ^ 2 σ2 p _ z ^ 2 π2 p _ x ^ 2 = π2 p _ y ^ 2 π ^ * 2 p _ x ^ 2 = π ^ * 2 p _ y ^ 1 (Paramagnetic) F _ 2 ⇒ σ1 s ^ 2 σ ^ * 1 s ^ 2 σ2 s ^ 2 σ ^ * 2 s ^ 2 σ2 o _ z ^ 2 π2 p _ x ^ 2 = π2 p _ y ^ 2 π ^ * 2 p _ x ^ 2 = π ^ * 2 p _ y ^ 2 (Diamagnetic)

Among H _ 2 , H e _ 2 ^ + , L i _ 2 , B e _ 2 , B _ 2 , C _ 2 , N _...

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More from Chemical Bonding and Molecular Structure

${H}_{2} ⇒ \sigma1{s}^{2}$	(Diamagnetic)
$H{e}_{2}^{+} ⇒ \sigma1{s}^{2}$ ${\sigma}^{*} 1{s}^{1}$	(Paramagnetic)
$L{i}_{2} ⇒ \sigma1{s}^{2}{\sigma}^{*}1{s}^{2}\sigma2{s}^{2}$	(Diamagnetic)
$B{e}_{2} ⇒ \sigma1{s}^{2}{\sigma}^{}1{s}^{2}\sigma2{s}^{2}{\sigma}^{}2{s}^{2}$	(Does not exist)
${B}_{2} ⇒ \sigma1{s}^{2}{\sigma}^{}1{s}^{2}\sigma2{s}^{2}{\sigma}^{}2{s}^{2}\pi2{p}_{x}^{1} = \pi2{p}_{y}^{1}$	(Paramagnetic)
${C}_{2} ⇒ \sigma1{s}^{2}{\sigma}^{}1{s}^{2}\sigma2{s}^{2}{\sigma}^{}2{s}^{2}\pi2{p}_{x}^{2} = \pi2{p}_{y}^{2}$	(Diamagnetic)
${N}_{2} ⇒ \sigma1{s}^{2}{\sigma}^{}1{s}^{2}\sigma2{s}^{2}{\sigma}^{}2{s}^{2}\pi2{p}_{x}^{2} = \pi2{p}_{y}^{2}\sigma2{p}_{z}^{2}$	(Diamagnetic)
${O}_{2}^{Θ} ⇒ \sigma1{s}^{2}{\sigma}^{}1{s}^{2}\sigma2{s}^{2}{\sigma}^{}2{s}^{2}\sigma2{p}_{z}^{2}\pi2{p}_{x}^{2} = \pi2{p}_{y}^{2}{\pi}^{}2{p}_{x}^{2} = {\pi}^{}2{p}_{y}^{1}$	(Paramagnetic)
${F}_{2} ⇒ \sigma1{s}^{2}{\sigma}^{}1{s}^{2}\sigma2{s}^{2}{\sigma}^{}2{s}^{2}\sigma2{o}_{z}^{2}\pi2{p}_{x}^{2} = \pi2{p}_{y}^{2}{\pi}^{}2{p}_{x}^{2} = {\pi}^{}2{p}_{y}^{2}$	(Diamagnetic)