1.

An elementwith atomic number106has beendiscoveredrecently. Which of the followingelectronicconfigurationwill itposses ?

Answer»

`[Rn ] 5f^(14) 6D^(4)6d^(4) 7s^(2) `
`[Rn ] 5d^(14)6d^(5) 7s^(1)`
`[Rn] 5f^(14) 6d ^(6)7s^(0)`
`[Rn] 5f^(14) 6d^(1) 7s^(2) 7p^(3)`

Solution :In heavierelements HUND's rule is notalwaysfollowed.Referto PeriodicTablegivenon thebackof thetitlepage.


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