According to molecular theory, the species am | vedclass

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Question

Chemical Species
			Bond Order
		
		
			$He _{2}^{+}$
			$0.5$
		
		
			$He _{2}^{-}$
			$0.5$
		
		
			$Be _{2}$
			$0$

Vedclass · Accepted Answer

$Be _{2}$

Vedclass · Answer

Chemical Species
			Bond Order
		
		
			$He _{2}^{+}$
			$0.5$
		
		
			$He _{2}^{-}$
			$0.5$
		
		
			$Be _{2}$
			$0$
		
		
			$O _{2}^{2-}$
			$1$
		
	


According to $M.O.T.$ If bond order of chemical species is zero then that chemical species does not exist.

According to molecular theory, the species among the following that does not exist is

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