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Atomic Number and Mass Number | Class 9 Chemistry Sindhboard | Chapter 1 Fundamentals of Chemistry

Atomic number and Mass number
What is atomic number and Mass number
Define atomic number and Mass number
Atomic number and Mass number Class 9 Chemistry Sindhboard
What is atomic number and Mass number Class 9 Chemistry Sindhboard
Class 9 Chemistry Sindhboard
Class 9 Chemistry Sindhboard Chapter 1 Fundamentals of Chemistry
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Karachiboard chemistry class 9th

Atomic Number

Number of protons in the nucleus of an atom is called Atomic number.It is represented by Z

Mass Number

Sum of Protons and neutrons in the nucleus of an atom is called mass number .
It is represented by A

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