If the atomic mass and the atomic number of a neutral atom is 35 and 17 respectively, find the proton number

If the atomic mass and the atomic number of a neutral atom is 35 and 17 respectively, find the electron number

If the atomic mass and the atomic number of a neutral atom is 35 and 17 respectively, find the neutron number

Who discovered the nucleus?

Who proposed the first scientifically supported atomic theory?

Who discovered the neutron?

Who discovered the electron first?

Who believed in the four elements and proposed?

Who first proposed that matter was made of atoms?

Who studied with cathode ray tube?

Who mentioned about “energy level” or “orbit concept”?

Who made the gold foil experiment?

Who suggest uncertainty principle about location of an electron in atom?