SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Two atoms of the same element but with different mass numbers are called ____
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electrons
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isotopes
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variables
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electron cloud
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Explanation:
Detailed explanation-1: -Atoms of the same element having the same atomic number but different mass are called isotopes. They have same number of protons and electrons but different number of neutrons. For example: Hydrogen-protium (11H), deuterium (12H) and tritium (13H) are isotopes.
Detailed explanation-2: -The atoms of different elements with the same mass number, but different atomic numbers are called isobars.
Detailed explanation-3: -Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. The number of protons in a nucleus determines the element’s atomic number on the Periodic Table. For example, carbon has six protons and is atomic number 6.
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