What's an Element's Atomic Number?

Atomic Number: Definition, Finding Atomic Number, Videos and Questions

The activity of a freshly prepared radio - active sample is 10^10 disintegrations per second, whose mean life is 10^9s . The mass of an atom of this radio - isotope is 10^-25 kg. The mass (in mg) of the radioactive sample is

How to Find Atomic Number

An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom? - Chemistry | Shaalaa.com

Atomic Number & Mass Number - Atomic Number Definition, Facts, Videos & Calculations with Examples and FAQs

Atomic Theory | Definition, Timeline & Examples

Bohr's Atomic Model And Its Limitations - Study Bohr's Theory on BYJU'S