Conductivity, malleability, and high melting points. Hope this helps :)
20 g O2 x 1 mol O2/32 g O = 0.625 mol O2
Answer:

Explanation:
The molar mass of uranium-235 is 235 g/mol. So one mole of uranium-235 has a mass of 235 g. Put differently 6.022×10^23 atoms of uranium-235 have a mass of 235 g. Knowing that, how can we use that to find the mass of one atom?
mass of one atom = 