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andrew11 [14]
4 years ago
7

PLEASE HELP!!!

Chemistry
1 answer:
Mumz [18]4 years ago
8 0

Answer:

Electron = 10

Proton = 10

Neutrons = 11

Explanation:

if you want to calculate the number of neutrons and element simply , just subtract number of The number of electrons in a neutral atom is equal to the number of protons. or the atomic number fom the mass number n atomic number of an element is equal o the number of electrons present

Atomic no = no of proton present or

Mass number = proton + neutrons

21 = protons +11

protons = 10

The number of electrons in a neutral atom is equal to the number of protons.

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