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Nuclei tend to have more neutrons than protons at high mass numbers because:
(1) Neutrons are neutral particles
(2) Neutrons have more mass than protons
(3) More neutrons minimize the coulomb repulsion
(4)Neutrons decrease the binding energy
Ans: Neutrons have more mass than protons
How do impurities and temperature affect electrical resistivity of metals? Ans: Temperature effect on resistivity: Any increase in temperature of a conductor increase
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