Its nucleus emits radioactive particles continuously.
Weak Force
Similarity: Both show that the radioactive atoms decrease and decayed atoms increase Difference: an actual decay is longer.
You can also say that they are radioactive.
If you are referring to a cell's nucleus than the simple answer is that's not radioactive. Radioactivity occurs when elemental atoms become unstable due to the loss or gain of additional neutrons; these unstable atoms are referred to as radioactive isotopes. If a cell's nucleus were radioactive it would not last very long, its structure and function would quickly degrade and collapse.
Nuclear power plants use the heat from the radioactive decay of Uranium or other radioactive atoms to boil water and make steam to run electrical generators.
yes
Radioisotopes are "radioactive isotopes"; they are not stable. Radioactive atoms will decay, or break apart into other atoms, by emitting an electron, or a neutron or a positron or an alpha particle (2 protons and two neutrons). The rate at which this happens is measured by the "half-life"; after one half-life, half of the atoms will have decayed. After another half-life, half of the remaining atoms will have decayed. Atoms with short half-lives are highly radioactive, and can be fairly dangerous. Atoms with long half-lives are only slightly radioactive, and aren't all that dangerous.
All atoms are nuclear, in that they all have nuclei. Some atoms have unstable nuclei, making them radioactive. I'm afraid I have no idea what you mean by "nuclear atoms," unless you meant to say radioactive atoms, in which case the answer is "they have unstable nuclei and they're radioactive."
No
A stable, nonradioactive atom must be formed.
Yes. All of the actinides are radioactive.
Unstable atoms are said to be radioactive
Generally, the smaller the nucleus, the less radioactive.
8
The half-life
radioisotopes
A radioactive atom is an atom that has an unstable nuclear force, and therefore either absorbs or emits a radioactive particle.