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CBSE Class 12-science Answered

can we remove a proton from a nuclei  
Asked by NEHAL DESAI | 04 Mar, 2015, 06:30: PM
answered-by-expert Expert Answer

Hi Nehal,

Yes. A proton can be removed from a nucleus.

This is what happen in nuclear fission.

Answered by | 04 Mar, 2015, 06:34: PM

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CBSE 12-science - Physics
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The number of moles in an elemental sample is just the ratio of the mass m to atomic mass 4. n= A The number of protons N, in an elemental sample is Z (atomic number) times the number of moles of Avogadro's number NA N=ZnN P A Copper has an atomic mass of 63.5 g/mole and 29 protons per atom. If such an atom were neutral, then it would have as many protons as electrons. If you remove electrons from a neutral state, then you get a net positive charge. Given a 54 gram ball of copper with a net charge of 2.2 µC, what fraction of the copper's electrons have been removed?
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