how many protons and neutrons are the in an atom having A=39;Z=39 answer
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Given :-
A = 39
Z = 39
To find :-
Total number of neutrons and protons.
Ans :-
P = 39
N = 0
Atomic mass :- The sum total mass of neutrons and protons present in the nucleus of an atom is called it's atomic mass.
It is represented by symbol A.
Atomic mass = Protons + electrons
Atomic number :- The total number of protons present in nucleus of an atom is called it's atomic number.
It is represented by symbol Z.
Now, A = 39 , Z = 39
No. of protons = Z = 39
Number of neutrons = A - Z
→Number of neutrons = 39 - 39
→Number of neutrons = 0
Hence, the number of neutrons in atom is 0 and number of proton is 39.
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