Question

Calculate the atomic mass of $Ca$ atom in g?

• A. $3.32\times {10}^{24}$ g
• B. $3.32\times {10}^{-23}$ g
• C. $6.64\times {10}^{-23}$ g
• D. $6.64\times {10}^{-24}$ g

Answer 1

The correct option is C $6.64\times {10}^{-23}$ g

Atomic mass of $Ca=(20+20)\times 1.66\times {10}^{-24}$ g
$=6.64\times {10}^{-23}$ g