A group of atoms carrying a charge is known as
Cation
Anion
Ion
Polyatomic ion
Formula of aluminium oxide is
AlO2
Al2O2
Al2O3
Al2O4
The formula of hydrogen sulphide is
HS
H2S
H3S
HS3
It is used to find out how the atoms of an element will combine with the atoms of another element to form a chemical compound.
Valency
Atomicity
Ions
Formula
The building blocks of all matter are
Atoms
Molecules
Elements
Compounds
The symbol of Potassium is
P
Ka
Pa
K
The ratio of given number of particles to Avogadro number gives
Number of moles
Atomic number
Molecular mass
Atomic mass
Mass of one mole of a substance is called its
Molar mass
Isotopic mass
The mass unit equal to exactly one-twelfth (1/12th) the mass of one atom of carbon-12 is
One atomic mass unit
Chemical composition
Chemical properties
