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46. The Nucleus
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Q1 of 94 Page 440

If neutrons exert only attractive forces, why don’t we have a nucleus containing neutrons alone?

Neutrons exert attractive forces, but are neutral in nature. So there will be no charge inside the nucleus and hence electrons will not face any attraction. Thus the atom in overall will become unstable.


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2

Consider two pairs of neutrons. In each pair, the separation between the neutrons is the same. Can the force between the neutrons have different magnitudes for the two pairs?

3

A molecule of hydrogen contains two protons and two electrons. The nuclear force between these two protons is always neglected while discussing the behavior of a hydrogen molecule. Why?

4

Is it easier to take out a nucleon (a)from carbon or from iron (b)from iron or from lead?

5

Suppose we have 12 protons and 12 neutrons. We can assemble them to form either a 24Mg nucleus or two 12C nuclei. In which of the two cases more energy will be liberated?

Questions · 94
46. The Nucleus
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