Question

why has carbon 12 been selected as reference to express atomic masses of elements​

Answer 1

Answer:

beacuse the relative atomic masses of all elements have been found with respect to an atom of carbon -12

Explanation:

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Answer 2

Carbon 12 has been selected as reference to express atomic masses of elements because:

1) It is present abundantly in nature.

2) It forms bonds with most of the elements.

3) Due to presence of catenation property.

4) Taking it as the reference atom, atomic masses of most of the elements was coming as whole numbers.