Someone please help i have to get it done today

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth

Will a solution form when the solvent and solute are both nonpolar? a. not likely b. never c. most likely

How can the number of core electrons be determined from the periodic table