What is the positive charge on the nucleus of an atom due to?

Name the gas which produces anode rays consisting of protons in the discharge tube experiment.

Which part of an atom was discovered by Rutherford’s alpha particle scattering experiment?

State the number of electrons present in the outermost shell of the atom of the following elements:

(i) Neon (ii) Chlorine

Which shell of an atom can accommodate a maximum of:

(a) 8 electrons?

(b) Chlorine