Concepts

Bonding of two or more atoms of same or different elements

Different version of same element containing different number of neutrons

Isotopes Explanation

All Isotopes of the element have same atomic number but different mass because of the difference in number of neutrons. Mass […]

Substance which is made up of only one particular type of atom

Composed of two or more elements

Smallest particle which involves in chemical reaction

Reagent which gets completely consumed in the reaction

One twelveth of the mass of an atom of carbon-12. It is equal to 1.66 x 10⁻²⁷ kg

Average relative mass of an atom of element compared to mass of carbon -12 taken as 12 a.m.u