General Knowledge - Chemistry - Discussion

Discussion :: Chemistry - Section 1 (Q.No.72)


The mass number of an atom is equal to

[A]. the number of protons
[B]. the number of protons and electrons
[C]. the number of nucleons
[D]. the number of neutrons

Answer: Option C


No answer description available for this question.

Raj said: (Jul 24, 2011)  
Why? I do not understand.

Kamal Shah said: (Dec 28, 2011)  
Mass number is total number of protons and neutrons collectively known as nucleons.

Tin said: (Feb 21, 2012)  
The mass no. Of an atom is the no. Of neutrons and protons which are together known as nucleons.

The mass no. is the sum of the no. Of neutrons + protons.

Sanjeev said: (Aug 24, 2013)  
The mass number is the sum of the no.of neutrons + protons.

Saraswatichandra said: (Feb 22, 2014)  
Nucleon means sum of proton & electron.

Kaviyarasan said: (Oct 27, 2014)  
Mass number mean neutrons and protons here.

Kamalakanta Mohapatra said: (Jun 1, 2016)  
The Mass number is equal to the sum total of neutrons and protons (ie) nucleons.

Yusuf said: (Jul 23, 2016)  
Nucleons consist of proton and neutron since the mass number is the sum of proton and neutron.

Paal Pandi said: (Apr 27, 2017)  
Nucleons are a combination of proton & neutron.

Aruval Swamy said: (Apr 27, 2017)  
It is a combination of proton & neutron.

Sanjita Majhi said: (Aug 13, 2021)  
Mass number means neutron & protons.

Vishnu Gowda said: (Sep 27, 2021)  
Nucleons (protons & neutrons).

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