The 'f block' of the Periodic Table.
Hope this helps!
Uranium is present in approx. 220 rocks and minerals.
He found that uranium is radioactive. Uranium is in the f block. Atomic number of it is 92.
Uranium is a member of the actinoids group; period 7, block f.
Uranium is a member of the actinoids family; period 7, block f, no group number.
Uranium is a radioactive element. It is in the f block. We use it for make energy.
Uranium is found in the earth only in the form of compounds. Uranium is present in cca. 200 minerals.
1 nanogram of natural uranium = 2,53.1012 atoms
Which compound
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
Uranium is located in the actinide series on the periodic table, in the seventh row and the actinide block. Its atomic number is 92.
Lead is always present in uranium-bearing rocks because lead is a decay product of uranium. As uranium undergoes radioactive decay, it transforms into different elements, including lead. This is a natural process that occurs over time in the rocks containing uranium.
If you mean subatomic particles, all of the standard ones are present.