Depends on the isotope. Most uranium found naturally is U238 and hence 238 g would be 1 mole. U235 used for fission and bombs would be 235g.
For the isotope plutonium-239: cca. 2,52.1021atoms.
It depends on the atomic mass of a substance. To find out, divide the 1 by the atomic mass of the element (found on the periodic table), then multiply by 6.02*1023. Ag=(1/Am)*6.02*1023 Where Am=atomic mass of the element, and Ag=the number of atoms in a gram.
There are 6.022 x 10^22 atoms of sulfur in 1 gram, which is equivalent to Avogadro's number for a single element sulfur.
1 gram molybdenum (1 mole Mo/95.94 grams)(6.022 X 1023/1 mole Mo) = 6 X 1021 atoms of molybdenum ========================
1 gram phosphorus (1mol P/30.97 grams)(6.022 X 10^23/1mol P) = 1.9 X 10^22 atoms of phosphorus
1 nanogram of natural uranium = 2,53.1012 atoms
There are 15.432 grains in one gram224 grains=1 dwt / 1 { pennyweight } =.05 troy ounce / 1 gram=.643 pennyweight / 1 grain = 0.0648 grams / 4 grains = 1 carat / 15.432 grains = 1 Gram
1 atom-gram of uranium = 238,02891 grams
I won't even waste the time looking up actual numbers.a mole of atoms of helium is about 4 grams, therefor 1 gram of helium is about 0.25 moles of helium atomsa mole of atoms of uranium is about 238 grams, therefor 1 gram of uranium is about 0.0042 moles of uranium atomsA gram of helium contains more atoms than a gram of uranium by about a factor of 60.
1 atom gram of natural uranium = 238,028 91 grams
x/2
For the isotope plutonium-239: cca. 2,52.1021atoms.
There are approximately 6.022 x 10^22 atoms in 1 gram of sulfur based on Avogadro's number, which is the number of atoms or molecules in one mole of a substance.
9.6 grams of uranium (1 mole U/238.0 grams)(6.022 X 10^23/1 mole U) = 2.4 X 10^22 atoms of uranium
Absolutely none. Radium is element #88, while uranium is element #92. They are two completely different entities. If you are referring to uranium ores, it is a different story. The ratio is about 3 metric tons of uranium to 1 gram of radium. Oxygen and other elements are also present in uranium ore. http://en.wikipedia.org/wiki/Uranium#Oxides
The answer is 4,745.10e21 atoms.
1 gram = 1000 mg