Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus; The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc
For example natural and artificial radioactivity.
Radioactivity was discovered by Henry Becquerel but the term 'Radioactivity' was given by Madam Curie. It is the process of process of spontaneous disintegration of nucleus and is measured by Geiger counter.
The radioactivity that people encounter on a regular basis actually comes from their natural environment rather than the radioactivity being from some manmade source.
Henri Becquerel was a French scientist who was credited for the discovery of radioactivity. He was credited in 1896.
Radioactivity was first discovered by Henri Becquerel on the 1890s. He received the Nobel Prize, along with the Curie's, for this work.
a definition
True and False. Radioactivity is a characteristic of unstable atomic nuclei, whereas radioactive decay is the process that a radioactive nucleus undergoes when it decays due to its instability.Argument for true: Radioactivity is the tendency to undergo radioactive decay.Argument for false: The two terms are unrelated because one is a characteristic and the other is a process, and, therefore, the question misunderstands the definition of the terms.You choose your definition. This writer prefers false.
The time taken for the radioactivity to halve its intensity, starting from any arbitrarily chosen instant.
Radioactivity affect the water molecules. Radioactivity makes it harmful
What other sort of radioactivity is there?
For example natural and artificial radioactivity.
Radioactivity can be induced in ordinary matter by artificial transmutation.
You cannot measure radioactivity in litres
Radioactivity in Japan is about 15,000 terabecquerels.
Human + A lot of radioactivity = Dead
Artifical radioactivity
no but she built the knowleage of radioactivity.