On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?
As per Rutherford’s model of an atom, the positively charged protons are the ones that are present in the atom.
Complete the following table
Which 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:
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