. Fill in the blanks in the following statements
(a) Rutherford’s α-particle scattering experiment led to the discovery of
the ———
(b) Isotopes have same ———but different———.
(c) Neon and chlorine have atomic numbers 10 and 17 respectively. Their
valencies will be———and———respectively.
(d) The electronic configuration of silicon is ———and that of sulphur
is ———.
(a) Rutherford’s α-particle scattering experiment led to the discovery of the atomic nucleus.
(b) Isotopes have same atomic number but different number of neutrons.
(c) Neon and chlorine have atomic numbers 10 and 17 respectively. Their valencies will be 0 and 1 respectively.
(d) The electronic configuration of silicon is 2, 8, 4 and that of sulphur is 2, 8, 6.
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