General Knowledge - Chemistry - Discussion

Discussion :: Chemistry - Section 1 (Q.No.35)

35. 

The mass number of a nucleus is

[A]. always less than its atomic number
[B]. the sum of the number of protons and neutrons present in the nucleus
[C]. always more than the atomic weight
[D]. a fraction

Answer: Option B

Explanation:

No answer description available for this question.

Sowmya said: (Sep 16, 2013)  
Yes because the nucleus center part contains protons and neutrons only.

Arun Muna said: (Jun 27, 2015)  
Sum of protons and neutrons in the nucleus is the mass no.

Farman said: (Nov 8, 2016)  
Yes if we plus the electron and protons number, then it is called atomic mass.

Rex said: (Feb 10, 2019)  
Yes, The process of adding up protons and neutrons together can be termed to ATOMIC MASS.

Ahmed said: (Nov 1, 2019)  
Atomic Number is just a total number of protons in a neutral atom which equals to electron number of that neutral atom.

Whereas mass number is the sum of protons and neutrons in the nucleus of atom.

Mahwish Talib said: (Oct 31, 2020)  
Yes, because the mass number or atomic mass is the same which equals to a number of protons and neutrons present in a nucleus.

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