Positives repel each other. In an atom, the nucleas is full repelling protons with their positive charge. It is the nuclear force that holds them together in the nucleus. A Helium atom has only 2 protons which makes it more stable.
Uranium on the other hand, has 92 protons all squashed together. This makes it very unstable which allows it to undergo gamma radiation.
That is why Uranium is radioactive.
Unstable atoms as uranium are radioactive; the stability depends on the ratio between protons and neutrons.
All uranium compounds are radioactive to some degree.
All the isotopes of uranium are radioactive and unstable.
Yes.......most likely. I can't think of anything to do with Uranium, that isn't radioactive! -------- Uranium natural isotopes are not so radioactive compared with other isotopes; but all the isotopes of uranium are radioactive.
Uranium is a natural chemical element, a metal and is radioactive.
He found that uranium is radioactive. Uranium is in the f block. Atomic number of it is 92.
All uranium compounds are radioactive to some degree.
Yes, uranium is a radioactive element.
Yes, uranium is a radioactive metal.
Yes. Uranium is a radioactive metal
Yes, raw uranium is radioactive.
All the isotopes of uranium are radioactive and unstable.
Yes.......most likely. I can't think of anything to do with Uranium, that isn't radioactive! -------- Uranium natural isotopes are not so radioactive compared with other isotopes; but all the isotopes of uranium are radioactive.
Uranium is an example of an actinde; also uranium is a solid metal, radioactive, a natural chemical element.
Uranium is toxic and radioactive.
Uranium is radioactive and toxic.
Uranium is a natural, radioactive metal.
Uranium is unstable, radioactive element.