Radio-Activity was created in 1975-10.
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Uranium becomes lead
You can only say, 23 years later, I-131's radioactivity almost decreases to 1/8 of original radioactivity.
Radioactivity is caused by unstable atoms, that break apart.
Ernest Rutherford used a device called a scintillation counter to detect radioactivity. This device counted the flashes of light produced when radioactive particles interacted with a phosphorescent material. Additionally, he employed a gold foil experiment to observe the scattering of alpha particles, which further contributed to his understanding of atomic structure and radioactivity.
"Artificial transmutation" is a nuclear reaction induced in laboratory, its man made. Artificial radioactivity is a radioactive disintegration phenomenon supported by artificial isotopes.
Natural radioactivity occurs when certain elements spontaneously decay, emitting radiation. This can include isotopes like uranium and thorium found in the Earth's crust. Artificial radioactivity, on the other hand, is created by humans through processes such as nuclear reactions or particle accelerators. This includes isotopes that are not naturally occurring but are created in laboratories for various applications.
Radioactivity affect the water molecules. Radioactivity makes it harmful
Radioactivity was not created, it occurs naturally when there are too many protons in a nucleus of an atom. They are charged positively and since they are the same charge they repel each other. When the nucleus bursts radioactivity occurs. Radioactivity was first observed by Whilem Roentgen, who did not understand them, therefore he named them x-rays, x standing for unknown. Later on Henri Bequerel discovered that uranium gave off "x-rays". But it was Marie Curie who first understood these "x-rays" and coined the term radioactive to describe them.
What other sort of radioactivity is there?
Radioactivity can be induced in ordinary matter by artificial transmutation.
no but she built the knowleage of radioactivity.
You cannot measure radioactivity in litres
Radioactivity in Japan is about 15,000 terabecquerels.
NO. Henri Becquerel was the discoverer of radioactivity.
You need radioactivity, for many things such as x-rays.
Radioactivity has nothing to do with diffusion.