if there is given sodium( Na with atomic no.11 and mass no 23) and no. of proton are 11 and and no of electron are 12. and find no. of neutron
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No. Of neutrons = Mass no. - Atomic no.
= 23 - 11 = 12
And just btw ur question is wrong. There cannot be 12 electrons as metals don't take electrons they only give and sodium is a metal
renubala8080gm57:
brother in que i done a mistake . the electrons are not 12 it is 11. i think by using elec 11 you proton should be 11. please show me formula also. pleaseeeee
atomic no. = no. of protons = no. of electrons = 11
mass no. = atomic no. + no. of neutrons. or. mass no. = no. of protons + no. of neutrons
now, mass no. = 23
so, 23 = 11 + no. of neutrons
And, no. of neutrons = 23 - 11 = 12
hope u understand
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