Maitri Sharma - What is Mass Number Class 9

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What is Mass Number Class 9 | Physics Wallah
The mass number is the number of protons and neutrons present in the atom of an element. It is denoted by “A”. The mass number is represented either on the left-hand side (LHS) or on the right-hand side (RHS) of the symbol of the element as a superscript.

https://www.pw.live/chapter-structure-of-atom-class-9/mass-number

#physics #science #atom #protons #massnumber

What is Mass Number Class 9 | Physics Wallah The mass number is the number of protons and neutrons present in the atom of an element. It is denoted by “A”. The mass number is represented either on the left-hand side (LHS) or on the right-hand side (RHS) of the symbol of the element as a superscript. https://www.pw.live/chapter-structure-of-atom-class-9/mass-number #physics #science #atom #protons #massnumber

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