Alead atom has a mass of 3.14 x 10 to the negative 22nd g. how
many lead atoms are in a cube of lead that has a volume of 2.00cm
cubed, if the density of lead is 11.3 g/cm cubed?

Explanation:

The given data is as follows.

       Mass of a lead atom =

       Volume = 2.00

        Density = 11.3

As it is mentioned that 1 cubic centimeter contains 11.3 grams of lead.

So, in 2 cubic centimeter there will be of lead atoms.

One lead atom has a mass of . Therefore, number of atoms present in 22.6 g of lead will be as follows.

                  =

Thus, we can conclude that there are of lead are present.

a:

by the combination of an unlimited number of elements