6. | Dual characteristic of metals was described by |
a. | Max Planck |
b. | Stoney |
c. | Moseley |
d. | Louis DE Broglie |
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Answer: (d).Louis DE Broglie
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7. | Existence of neutron was predicted by Rutherford in year |
a. | 1920 |
b. | 1980 |
c. | 1900 |
d. | 1970 |
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Answer: (a).1920
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8. | Atomic model is |
a. | flat |
b. | not flat |
c. | in one plane |
d. | in one dimension |
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Answer: (b).not flat
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9. | Moseley law helped us to discover |
a. | Pr |
b. | Tc |
c. | potassium |
d. | sodium |
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Answer: (b).Tc
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10. | Maximum number of electrons that can be accommodated in a shell is given by |
a. | 2n2 |
b. | 2n3 |
c. | 2n |
d. | none |
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Answer: (a).2n2
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