Choose the correct answers to the questions from the given options. A nucleus of an atom consists of 146 neutrons and 95 protons. It decays after emitting an alpha particle. How many protons and neutrons are left in the nucleus after an alpha emission?
Explanation
An alpha particle has 2 protons and 2 neutrons. So, after emitting an alpha particle, the number of protons will be 95 - 2 = 93 and the number of neutrons will be 146 - 2 = 144.
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