There is no difference in the meaning of the word. It is essentially the same thing. There are just two differenct forms of the word. You're still dealing with radium, Uranium, americium, and other radioactive elements either way.
Both are approaches for a nuclei to reach stability.
Radioactivity is the emission of radiation by the radioactive nuclei in its process to gain stability. This radiation could Alpha particles, beta particles (negative or positive), gamma electromagnetic radiation, neutrons, ect.
Fissionability is the splitting of a nuclide into two (rarely three) smaller nuclei plus other small particles as neutrons. This fission could be spontaneous fission or an induced fission (induced by e.g. neutron bombardment)
Radioactivity is the general property common to all radioactive materials. Radioactive is a qualifierused to identify materials having this general property.
Examples:
Ionization is the removal of electrons from extra nuclear part of the atom and is reversible process while Radioactivity is the disintegration of atomic nucleus and is irreversible process.
Infrared radiation is of a much lower frequency (and a longer wavelength) than X-rays.
radiation is energy just one particular form of.
Chuck norris
Radioactivity
none of your senses can detect radioactivity by themselves
yes
Alpha radiation is helium-4 nuclei - i.e., each alpha particle consists of 2 protons and 2 neutrons.Beta radiation is either electrons or positrons (= anti-electrons). Gamma radiation is high-energy photons.
The Type Of Radiation That It Produce Is The Gamma Ray!
There is no difference
Infrared radiation is of a much lower frequency (and a longer wavelength) than X-rays.
radioactivity start from the nucleus of an atom which becomes unstable n emit radiation
Substances that emit ionizing radiation
Beta radioactivity radiation.
This process through which unstable nuclei emit radiation is called radioactive decay. It also is called nuclear decay, and it is a natural process in which an atom of an isotope decomposes into a new element.
Radioactivity
Not actual radiation, but you feel the effects
Radioactivity