Why is the valency of helium …
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Posted by Sree Laxmi 5 years, 8 months ago
- 5 answers
Yogita Ingle 5 years, 8 months ago
Atomic number of helium is 2. Its electronic configuration is K-2. The maximum number of electrons K shell can accommodate is 2. It means that its duplet is complete. Helium atom does not have to gain or lose any electron since, its outermost shell is complete with 2 electrons. Hence, the valency of helium atom is zero.
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Varun Jakhar 5 years, 8 months ago
0Thank You