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Earn 100

The atom of which element has the smallest nucleus?
(a)Hydrogen
(b)Helium
(c)Oxygen
(d)Nitrogen

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Important Questions on Chemistry
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The number of neutrons in the nucleus of an atom of mass A and atomic number Z is given by:

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The neutron was discovered by _____.

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Who was the inventor of the atomic theory?

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Who was the discoverer of radioactivity?

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Which among the following is a mixture?

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The Long Form of the Periodic Table is based on:

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The most important ore of aluminum is:

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Which of the following is the lightest gas?
