Question

the element with Nobel gas electronic configuration contains......... in outer most cell
exception:{in detail answer}.............??????
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Answer 1

Answer:

8, Helium (He)

Explanation:

noble gases have 8 electrons in outermost shell because they have completed the octet. Except Helium i.e. He has 2 electrons in the outermost shell. it is said to have completed duplet which is also a stable state

Answer 2

Explanation:

helium (He), argon (Ar), neon (Ne), krypton (Kr), xenon (Xe), and radon (Rn).