Question

sodium atom has Proton is equal 11 neutron equal 12 Electrons equal 11 what is atomic number​

Answer 1

Answer; sodium -atomic number =11

atomic mass =23

explanation ; atomic number= total number of electrons present in an

atom

atomic mass= total number of protons + total number of neutron

Answer 2

Hello !!

Is very simple find the atomic number, the statement give the information that the numbers of protons is equal 11 and we know that the atomic number is equal the number of protons (Z = P). Therefore, the atomic number is 11.

I hope I have collaborated !