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Define valency?

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Define valency?
  • 3 answers

Noopur Singh 3 weeks, 6 days ago

Number of shells needed in outer shell to become stable. An atom is stable when outermost shell gains 8 electrons. Only exception is the first shell. This only needs 2 atoms to become stable. For example, and element with 5 electrons in outermost shell would need to gain 3 electrons to become stable, so its valency is 3.

Soumya Jaiswal 1 month ago

The no. of shell present in outermost shell of the atom
What is the difference between economic and political
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