sir please explain how we find valence of elements

Asked by sshivali3333 | 19th Sep, 2018, 11:06: AM

Expert Answer:

The valence electrons are the electrons in the last shell or energy level of an atom.
For example, all the elements in the first column all have a single valence electron (H, Li, Na, K, etc.). 
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Answered by Ramandeep | 19th Sep, 2018, 11:24: AM