Question

CALCULATE MASS OF ON ATOM OF CALCIUM

Answer 1

Explanation:

The mass of 1 mole of calcium is 40.078 grams. Mass of 1 atom of calcium is its mass number which is 20 * 2 = 40g (approx.) If the atomic number is odd number then atomic multiplied by 2 and then + 1 = mass number

Answer 2

6.641×10^-23 g

Explanation:

mass of 1mole calcium =40g

mass of 6.023 ×10^23 atoms =40g

mass of 1 atom=40 g/6.023×10^23