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Answer:
3 option
Explanation:
Answer:
\huge{ \green{12 \: (Magnesium)}}12(Magnesium)
Explanation:
K and L shell can have at most 2 , 8 electrons and M has 2 electrons . So total no. of electrons
= 2 + 8 + 2 = 12=2+8+2=12
[ Note : General formula for electrons in nth shell is
= 2 {n}^{2}=2n
2
]