Chemical formula of a compound is determined on the basis of __________ of its constituents.
Options:
A .  
number of neutrons
B .  
valency
C .  
atomic mass
D .  
atomic size
Answer: Option B : B The number of atoms combining to form the molecule of a compound is determined by the valency of its constituent atoms or ions. Valency is determined by the number of electrons an atom can accept, donate or share.
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