Difference between Atomic and Mass number
Atomic number |
Mass number |
The number of proton present In an atom is known as Atomic number. | The sum of number of proton and neutron in an atom is known as Mass number. |
It is the total number of proton in the nucleus. | The weight of electron is very less so the atomic mass of an atom is equal to its mass number. |
The atomic number is denoted by Z. | The mass number is denoted by A. |
It is help to classify and identify the element. | It is not to define the type of element. |
Atomic number is a digit which is use for placed the element In periodic table. | The mass number is measured by using atomic mass unit (amu). |
Isotopes share only the same atomic number. | Atomic mass is use to classify the different isotopes of same elements. |
The isobars have different atomic number. | Isobar have same mass number. |