SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What two particles determine the mass number?
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Protons and electrons
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Electrons and neutrons
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Protons and neutrons
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None of the above
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Explanation:
Detailed explanation-1: -Thus, the particles that determine the mass of an atom are protons and neutrons.
Detailed explanation-2: -The strong force and you These particles are each made up of three quarks moving at breakneck speeds that are bound together by gluons, the particles that carry the strong force. The energy of this interaction between quarks and gluons is what gives protons and neutrons their mass.
Detailed explanation-3: -Alpha particles (a) are composite particles consisting of two protons and two neutrons tightly bound together (Figure 1). They are emitted from the nucleus of some radionuclides during a form of radioactive decay, called alpha-decay.
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