Science, asked by arjanibaby, 1 year ago

How can the valency of an element be determined if its electronics configuration is known? What will be the valency of an element of atomic number 9?

Answers

Answered by ruuubilhaque
1
electronic configuration is-2,7.
therefore valency is 1-.
(The (-) sign in the valency has to be written like a power).
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