Question

Can someone check my work? And if in-correct help me?! Dont just tell me how to do I would need examples. Ill give medals:*
I need to find mass, molar mss, moles of each element as wellas atoms of each element!
The elements are gold, lead, uranium, sodium and lithium.

GOLD (AU)
Mass(grams):59.9341
Molar mass:196.97
Moles of each element:1
Atoms of each element:79

Lead (Pb)
Mass g:31.9812
Molar mass:207.2
Moles of each element:1
Atoms of each element:82

Uranium (u)
Mass g:51.9042
Molar mass:238.03
Moles of each element:12
Atoms of each element:42

SODIUM (Na)
Mass g:

Answer 1

How did you get 12 moles of Uranium?
other than that, the others seem fine.