SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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protons
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electrons
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neutrons
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None of the above
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Detailed explanation-1: -The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Detailed explanation-2: -Atomic number of an element tells about the number of protons present. The number of protons present will be equal to the number of electrons. Therefore, the atomic number of an atom is equal to both the number of electrons and protons present in an atom.
Detailed explanation-3: -The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons.
Detailed explanation-4: -In a neutral atom, the number of electrons is equal to the number of protons. For an ion, charged positively or negatively, the number of electrons is the atomic number (the number of protons) minus the charge of the ion.
Detailed explanation-5: -Therefore, atomic number is equal to number of protons or number of electrons.