Define: (a) Radical (b) Valency (c) Molecular formula

Define:

(a) Radical

(b) Valency

(c) Molecular formula
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1 Answer

Answer :

(a) Radical: A radical is an atom of an element or a group of atoms of different elements that behaves as a single unit with a positive or negative charge on it. 

(b) Valency: It is the number of electrons donated or accepted by the valence shell of an atom during chemical combination. 

(c) Molecular formula: It is a symbolic representation of a molecule. It shows the number of atoms of each element present in it. These atoms combine in whole number to form the molecule. 
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