Question

will mark brainlOxygen atom with electronic configuration 2, 6 achieves stable electronic configuration by gaining 2 electrons, thereby achieving stable electronic configuration of which nearest inert gas?
a)Helium
b)Neon
c)Krypton
d)Xenon

Answer 1

Answer: B neon

Explanation: Magnesium with atomic number 12 and electronic configuration 2(K), 8(L), 2(M). Therefore, it has two electrons in its valence shell. It donates two electrons from its M shell to attain the stable electronic configuration of the nearest noble gas neon. Thus, the magnesium ion has two positive charges.

Answer 2

Answer is
(b) Neon

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