Question

What is the number of protons in X What is the number of nuetrons in X

Answer 1

Answer:

Electron no. = Atomic number= proton no.

Nutron = Atomic mass - proton/Electron/ Atomic number.

Explanation:

for example .

Na =sodium.

Atomic number= 11.

atomic mass = 23

proton = atomic number.

proton =11.

Electron = proton = atomic number.

Electron = 11.

Neutrons = Atomic mass - proton/ Electron / Atomic number.

Nuetron = 23 - 11 .

Nuetron= 12

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