An atom 'A' has 2 electrons in the first orbit, 8 electrons in the second and 5 electrons in the third orbit of the atom. How many electrons are present in the orbit with highest energy?
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Explanation:
Correct option is C)
K L M
2 8 8
Thus, atomic number of the element will be 18.
And electronic configuration of the element can be given as:
1s
2
2s
2
2p
6
3s
2
3p
6
Thus, total number of s electron is 6.
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