SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which subatomic particle identifies an atom of an element?
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proton
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neutron
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electron
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nucleus
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Explanation:
Detailed explanation-1: -The number of protons in an atom determines its elemental identity. NO TWO ELEMENTS HAVE THE SAME NUMBER OF PROTONS IN THEIR ATOMS. The number of protons in an atom is called the ATOMIC NUMBER of the element. Each element therefore has a unique atomic number.
Detailed explanation-2: -Protons are positively charged subatomic particles. The number of protons in an atom is equal to the number of electrons in it. The discovery of protons is credited to Ernest Rutherford.
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