Name the elements with the following electronic configuration.
${1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {3 d}^{6} {4 s}^{1}$

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Solution

Total no of electrons in given configuration is 25
We know in a atom,
number of electrons = number of protons
and number of protons = atomic number
So given configuration is of $M n_{25}$

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