write the electronic configuration of the atom of the element having atomic no 11
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Explanation:
The atom belong to sodium , because the nuclear charge of the atom is 11 times and atomic mass of the atom is 23 ( nutron + protone) times of the hydrogen. As, hydrogen is having atomic mass and charge 1. Hence, the neutral sodium atom has 11 electrons and its its electronic configuration is 2,8,1.
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