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Question

The pair having elements with atomic number double to the atomic number of another element is:
  1. Ca, Na
  2. B, C
  3. Mg, Cr
  4. Ar, Ne

A
B, C
B
Mg, Cr
C
Ca, Na
D
Ar, Ne
Solution
Verified by Toppr

The atomic number of magnesium is 12 and the atomic number of chromium is 24 which is double the atomic number of magnesium.

Hence, the correct option is C

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