1.

Which of the following electronic configurations in the outermost two subshells is characteristic of the alkali metals ?

Answer»

`(n-1)s^(2)p^(6)NS^(2)`
`(n-1)s^(2)p^(6)d^(10)ns^(1)`
`(n-1)s^(2)p^(6)ns^(2)np^(1)`
`(n-1)s^(2)p^(6)ns^(1)`

Solution :Alkali metals have one ELECTRON in the OUTERMOST s-subshell.


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