Which of the following pairs represents isotopes?

Type: MCQ • Marks: 1

A. ¹²₆C and ¹⁴₆C

B. ¹⁴₆C and ¹⁴₇N

C. ⁴⁰₁₈Ar and ⁴⁰₂₀Ca

D. ²³₁₁Na and ²⁴₁₂Mg

Explanation

Both Carbon atoms share atomic number 6 but have mass numbers 12 and 14.

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Class 9th Science (MCQ)

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