Answer:
1 mole of calcium contains 6.023 [tex]\times[/tex] [tex]10^{23}[/tex] atoms.
Explanation:
1 mole is the amount of a substance that contains exactly [tex]6.023\times 10^{23}[/tex] constituent particles. 1 mole of a substance is always equal to the atomic mass of the element.
Hence, 1 mole of calcium will also have [tex]6.023\times 10^{23}[/tex] atoms.
Number of atoms in 1 mole calcium = 6.023 [tex]\times[/tex] [tex]10^{23}[/tex] atom