CBSE Class 9 Answered
sir please explain how we find valence of elements
Asked by sshivali3333 | 19 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.).
For more information, please click on the below link:
Answered by Ramandeep | 19 Sep, 2018, 11:24: AM
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. Then i have to first react Carbon with Oxygen then react that compond with calcium. So how will i know the valency of compound formed from reaction of carbon with oxygen. We can know the valency of elements from their atomic number and electronic configuration, but how can i know the valency of compound?
Please help,waiting for your reply,
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