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How many atoms in 1 gram of uranium?
There are approximately 2.5 x 10^21 uranium atoms in 1 gram of uranium.
What number is written after the isotope when writing the name?
The number written after the isotope in the name indicates the mass number of the isotope. It represents the total number of protons and neutrons in the nucleus of the atom.
How many neutrons are in Element 92?
Element number 92 is Uranium and there are two main isotopes - U235 and U238. In U235 there are 92 protons so there are 235 - 92 = 143 neutrons. In U238 there are thus 146 neutrons
Is uranium nuclear fuel?
Yes, U233, U235, and U238 are all used as nuclear fuels.
Is half life the same for each isotope?
No, the half-life of each isotope can vary significantly. Different isotopes have different rates at which they decay into other elements. Some isotopes have half-lives of seconds, while others have half-lives of millions of years.
Mass of uranium atom?
The mass of a uranium atom is approximately 238 atomic mass units. It is one of the heaviest naturally occurring elements.
How are isotopes of the same element named?
The same name with a different atomic mass number. As an example U235 and U238 are two isotopes of Uranium
What is fisssion track dating?
It is a dating method in geology based on natural fission of U238 to determine the atomic displacement (tracks) counts to determine age of material or volcanic deposits.
What is nuclear breeding?
This means the breeding of fissile material from non-fissile. Thus for example Pu239 results from irradiating U238 which is not fissile. Thorium can also be used to breed fissile uranium.
What do you called in an element having the same atomic number but different atomic masses?
Isotopes. eg U235 and U238. Both Uranium, atomic number 92, bur different isotopes.
What keeps the rocks inside the earth in molten state?
Radioactive decay in the inner core of k40 U238 and Th232 cause the earths internal heat plus lithostatic pressure (pressure of the overlying rocks).
What is one of the daughter elements of urainium-238?
U238 is a stable isotope of uranium - it doesn't undergo decay except at a very very slow rate unless hit with Neutrons - then it will decay to Neptunium
