NCERT Exemplar Solutions Class 9 Science Solutions for Structure of the Atom - Exercise in Chapter 4 - Structure of the Atom
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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 the same atomic number but different mass number 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 sulfur is 2.8.6
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