What is the electronic configuration of magnesium (2412Mg)?
A
2,6,3
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B
2,8,2
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C
2,8,3
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D
2,6,4
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Solution
The correct option is B 2,8,2 The atomic number of magnesium is 12. The maximum number of electrons that the K, L, M shells can accomodate are 2,8,18 respectively.
Hence, the electronic configuration of magnesium is- ShellKLMNo. of electrons 2 8 2