An element has an atomic number 12. How many electrons will be present in the K, L and M energy shells of its atom?

Academic Chemistry NCERT Class 9

Electronic configuration of an element with atomic number 12 is:

K L M

2 8 2

2 electrons in the K shell, 8 electrons in the L shell, and 2 electrons in the M shell of its atom.

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Updated on: 10-Oct-2022

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