Question

according to unitary theory,
40Ca is made up of

Answer 1

1 mol of Ca = x grams / 40 gram.per.mol

that's why, 40 mol of Ca = x grams.

Answer 2

Answer:

40 units of hydrogen

Explanation:

since atomic mass of hydrogen is 1

therefore 40 units of hydrogen = 40 x 1 = 40 = Ca