Given: Number of electrons = 8
Number of protons = 8
(i)The atomic number of an atom is the same as the number of protons in that atom, hence its atomic number is 8.
(ii) In an atom, the number of protons is equal to the number of electrons. Hence, both the charges -positive and negative, neutralize each other. Therefore, the atom does not possess any charge.
Answered by Shivani Kumari | 2 years agoWhich one of the following is a correct electronic configuration of Sodium?
(a) 2, 8
(b) 8, 2, 1
(c) 2, 1, 8
(d) 2, 8, 1
Number of valence electrons in Cl– ion are:
(a) 16
(b) 8
(c) 17
(d) 18
Isotopes of an element have
(a) The same physical properties
(b) Different chemical properties
(c) Different number of neutrons
(d) Different atomic numbers.
Rutherford’s alpha – particle scattering experiment was responsible for the discovery of
(a) Atomic nucleus
(b) Electron
(c) Proton
(d) Neutron