Question

Atomic mass of Se is 78.96 u. On a new scaled in which 12C were assigned an atomic mass of exactly 4 u instead of
exactly 12 u, the atomic mass of Se would be _______ u. (Round off to two decimal places)

Answer 1

Answer:

Explanation:

First of all we know the atomic mass of se is 78.96u new scale carbon 12 have mass exactly 4u instead of 12u so

Atomic mass of se × atomic mass of c12 - 4u ÷ atomic mass of c12- 12u so answer will be 26.66