7.3 understand the terms atomic (proton) number, mass (nucleon) number and isotope

7.3 understand the terms atomic (proton) number, mass (nucleon) number and isotope

Atomic Number: Atomic number is the number of protons in an atom

Mass number: Mass number is the addition number of protons and neutrons

Isotope: Isotope is an element which have the same atomic number as the original atom but different mass number.