SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The number of protons in the nucleus of an atom
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atomic mass units
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mass number
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atomic number
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nuclear force
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Explanation:
Detailed explanation-1: -Atomic number is the number of protons present in the nucleus of an atom of an element. Example: The nucleus of hydrogen atom contains 1 proton and hence, the atomic number of hydrogen is 1. The nucleus of carbon atom has 6 protons and hence, the atomic number of carbon is 6.
Detailed explanation-2: -The total number of protons and neutrons in the nucleus of an atom is called its mass number.
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