Chemistry
Write down the electronic configuration of the following:
(a) 1224X
(b) 1531Y
Write down the number of electrons in X and neutrons in Y.
Atomic Structure
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Answer
(a) Electronic configuration of 1224X is [2, 8, 2]
(b) Electronic configuration of 1531Y is [2, 8, 5]
Number of electrons in X = 12
Mass number of Y = 31 and number of protons in Y = 15
∴ Number of neutrons in Y = 31 - 15 = 16
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