Answers

2014-08-18T16:57:42+05:30
The number of electrons which an atom can donate,gain or share in order to complete its octet is known as theĀ valency of that particular atom.

TheĀ molecular mass of a substance is the sum of the atomic masses of its constituent atoms present in a molecule.
0
  • Brainly User
2014-08-18T17:21:26+05:30


Valency is the total number of electrons gained or loosed by an atom.

Molecular mass refers to the weight of an molecule.

0
tell me which std???
ur in which std???
8th
kk sry i became rude
me in 7th