Chemistry, asked by RobinRodrigues2103, 9 months ago

Mass number of an element is

Answers

Answered by Draxillus
1

Heya,

Mass number of an element is the sum of number of neutron and number of proton

For example :- Sodium has 11 protons and 12 neutrons.Hence, its mass number is 23.

Regards

Kshitij

Answered by maheshpatil19101983
1

Answer:

helium is a mass number of an element

I hope this answers is correct

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