Which substance below has the greatest mass?
1 mole of silver
1 mole of copper
1 mole of lead
1 mol of tungsten

If it isn’t a then it has to be d idk tho cause there’s no picture

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom. 

08.01 hope this and can i get brainlist? ?

Moles = mass/molar mass the molar mass of c20 = 12.011*20 = 240.22 g per mole therefore, the number of moles is 20 g / 240.22 g per mol = 0.0833 moles.