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Predict the name and position of the ele...

Predict the name and position of the element in the periodic table with the electronic configuration `(n - 1) d^(8) n s^(2)` for `n = 5`.

Text Solution

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For `n =5`, the electronic configuration `= (5-1)d^(8) 5s^(2) = 4d^(8) 5s^(2)`. The element corresponding to this configuration is palladium `(Pd)(Z = 46)`, which is a `d`-block element.
Group number = Number of electrons in `(n-1)` subshell `+` number of electrons in `nth` shell
`= 8+2 = 10`
Period of the elements: Number of principal quantum number of the valence shell `= 5th`.
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