GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Atomic number is represented by which letter?
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W
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C
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Z
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L
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Explanation:
Detailed explanation-1: -The total number of protons in the nucleus of an atom gives us the atomic number of that atom. It is represented with the letter ‘Z.’ All the atoms of a particular element have the same number of protons, and hence the same atomic number.
Detailed explanation-2: -Therefore, “Which element is represented by Z?” The answer is magnesium.
Detailed explanation-3: -An element is represented by ZXA, where Z is atomic number which is also equal to number of proton, A is mass number and X is symbol of the element. Mass number (A) = Number of protons (Z) + Number of neutrons. Isotopes: Atoms having same number of proton.
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