Question

Calculate number of neutrons present in 12 × 10 to the power 25 atoms of oxygen?

Answer 1

now to calculate the number of neutrons in 12 x 10 raised to the power 25 atoms of oxygen, calculate the number of neutrons in 1 atom of oxygen. now multiply it with 6 x 10 raised to the power 23 to get the number of neutrons in one mole of oxygen. Now multiply it with 2 x 10 raised to the power 2 to get the answer.//////this is your answer i think it may help you

Answer 2

Relation between nutron,proton and electron is; A=Z(=p)+N => N=A-Z=17–8=9.

So no.of neutron present in 12×10^25 atom is,

= 9×12×10^25 ans..