Can you please give the summary of this topic? Tell me in brief about isotopes and other parameters of an atom..

Atoms of the same element can have different numbers of neutrons; the different possible versions of each element are called isotopes. 

 

Lets remember this notation : ^AX_Z. Here X is the chemical symbol for the element, Z is the atomic number, and A is the number of neutrons and protons combined, called the mass number.

 

Hydrogen is written ¹H₁, deuterium is²H₁, and tritium is ³H₁. These are isotopes.

 

 

Please specify what other parameters you want to discuss about.