GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Isotope
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Atomic mass
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atomic weight
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atomic number
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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 number of protons in the nucleus of an atom is called it’s Atomic number.
Detailed explanation-3: -The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
Detailed explanation-4: -However, this question asks how many electrons are in the nucleus of an atom. This is a trick question. There are never any electrons in the nucleus of an atom. Therefore, the answer to this question is 0.