Question

Find the number of proton, electron and neutron for Z=18, A=22.​

Answer 1

Explanation:

we know that, z is the symbol of atomic number and a is the symbol of mass number...

we also know that, number of protons is equal to atomic number..

Then, number of protons= z= 18

we know that, mass number= number of protons + number of neutrons..

Then, 22= 18+ number of neutrons

Number of neutrons= 22–18= 4

for any electrically neutral element its, atomic number=number of protons=number of electrons..

So, number of electrons= 18