GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which notations represent different isotopes of the element sodium?
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32S and 34S
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S2-and S6+
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Na+ and Na0
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22Na and 23Na
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Explanation:
Detailed explanation-1: -Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons. Thus, isotopes have same atomic number (Z), but different mass number (A).
Detailed explanation-2: -Sodium-23 atom is the stable isotope of sodium with relative atomic mass 22.989770, 100 atom percent natural abundance and nuclear spin 3/2. A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.
Detailed explanation-3: -The atomic number of sodium is 11, while the number of neutrons in its nucleus is 12. Sodium’s atomic mass is 11 + 12 = 23. As a result, 1 mole of sodium equals 23 grams.
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