If a uninegative ion has 10 neutrons and 9 protons , electronic configuration of the atom of the element isA. 2, 8, 1B. 2, 7C. 2, 8D. 2, 8 , 8

If a uninegative ion has 10 neutrons and 9 protons , electronic config

1.	If a uninegative ion has 10 neutrons and 9 protons , electronic configuration of the atom of the element isA. 2, 8, 1B. 2, 7C. 2, 8D. 2, 8 , 8
Answer» Correct Answer - 2 `X^(-) = 9` protons (Z) 10 neutrons 10 electrons `Xoverset(+1e^(-))toX^(-1)` (9 electrons) " " (10 electrons) Therefore , the electronic configuration of an atom is 2 , 7

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If a uninegative ion has 10 neutrons and 9 protons , electronic configuration of the atom of the element isA. 2, 8, 1B. 2, 7C. 2, 8D. 2, 8 , 8

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