Match the names of the Scientists given in column A with their contributions towards the understanding of the atomic structure as given in column B (A) (B) (a) Ernest Rutherford (i) Indivisibility of atoms (b) J.J.Thomson (ii) Stationary orbits (c) Dalton (iii) Concept of nucleus (d) Neils Bohr (iv) Discovery of electrons (e) James Chadwick (v) Atomic number (f) E. Goldstein (vi) Neutron Mosley (vii) Canal rays
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
(A) (B)
- Ernest Rutherford (iii) Concept of nucleus
- J.Thomson (iv) Discovery of electrons
- Dalton (i) Indivisibility of atoms
- Neils Bohr (ii) Stationary orbits
- James Chadwick (vi) Neutron
- Goldstein (vii) Canal rays
- Mosley (v) Atomic number
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