How many atoms are in 3.45 moles of Calcium?

Hi there!

The correct answer to this question is: 2.08 x 10^24 atoms

Explanation:

In this case atoms are the same thing as molecules.

In one mole there are 6.022x10^23 molecules of an element.

So 6.022x10^23 * 2.08x10^24 is 2.08x10^24

explanation:

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.