CBSE Class 9 Chemistry Distribution of Electrons in Orbits

Q.

When an electron is de-excited, it emits energy in the form of



Q.

Which of the following elements has zero valency?



Q.

Oxygen has electronic configuration (2, 6); hence, its valency is



Q.

Carbon atom …………. four electrons from each hydrogen atom to complete its octet and form methane.



Valence Electrons and Octet Rule

This video explains valence electrons and the duplet and octet rules.

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