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Use EAN rule and predict the molecular f...

Use EAN rule and predict the molecular formula of nickel carbonyl?

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EAN rule states that in a number ofg metal complexes the metal atom rends to surround it self with sufficient ligands that the resulting effective atomic number is munerically equal to the atomic number of the noble gas element formed in the same period in which the metal is situated. The milecular formula of nickel carbonyl that follows EAN rule is `Ni(CO)_(4)`
For `Ni(CO)_(4)`, EAN `=[28-0+2(4)]=36`
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