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Atomic Number and Mass Number

11,17,10 are ...

Question

$11, 17, 10$ are the atomic number of elements $X, Y,$ and $Z .$
Write down the oxidation numbers of the elements in those compounds. Write the subshell electronic configuration of both ions.

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Solution

Compounds Oxidation state Subshell electronic configuration.
$X$
$Y$ $1 +$
$1 -$ $1 s^{2} 2 s^{2} 2 p^{6}$
$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6}$

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