Uranium natural isotopes emit alpha particles, gamma radiations, beta radiations and spontaneous fission neutrons.
Uranium is a heavy chemical element, but not the heaviest; the aspect is due to a greater number of protons and neutrons.
When chain reacting uranium, other elements are formed, some are heavier and others are lighter. As these elements decay due to radioactivity, some certain chemicals change into plut. But only a very small amount is made.
Due to the beta and alpha emission the uranium 238 became lead (Pb). "its for you to find out how it became lead,..." hehehe
Only in the mass of the nucleus, due to 3 extra neutrons in U238.
Deposits of uranium or uranium compounds in the lungs are very dangerous due to alpha particle radiation. The lung cancer is a long term effect.
The primal heat from the deep interior of the Earth is mainly due to radioactive decay, with a small contribution due to gravity compression.
Hydrogen gives off radiation, but uranium is more known for it's nuclear radioactivity due to its use in nuclear reactors.
That it can be used for producing atom bombs; that reactors that use uranium produce waste products that are very problematic; that those same reactors can have accidents which release a lot of radioactivity into the environment; that the handling of uranium itself is dangerous (health problems) due to its radiation.
FALSE
Yes.
spontaneous disintegration of atomic nuclei
Uranium-235 and uranium-238 are different isotopes of the element uranium. They have different mass numbers due to different numbers of neutrons.
spontaneous decay of unstable atomic nuclei.
there is not uranium in the sun. the nuclear fusion is due to hydrogen that fuses to helium
The term radio active came from the dangerous elements like Plutonium, Uranium, Radium and Caesium. These elements produces extreme heat and radioactivity. When exposed to these elements, one may get cancer problems. Pierre and Marie Curie discovered Radium but due to constant exposure to the element, they died of cancer. Plutonium and Uranium are used to produce atomic energy.
There is still appreciable heat being produced in spent fuel after it is unloaded, due to the radioactivity of the fission products, so it needs to be cooled. A water filled pond does this, and also provides shielding so that the fuel assemblies can be manipulated under water into containers for storage. At some later time, when the radioactivity has dropped off, and if required, the assemblies can be removed into dry casks, but they would still need to be shielded for personnel protection.
Uranium or plutonium is put in close proximity with itself (look up critical mass) creating heat (due to radioactivity) and the heat is used to heat a fluid which turns a turbine - either by primary or secondary systems.