It is called beta decay. there are two types:
1) posive beta decay in which atomic number decreases. 2) negative beta decay in which atomic number increases.
Actinide Series.
It isn't really an ELEMENT that is unstable, but an ISOTOPE. That means that in general, for the same element, some atoms will decay, and some will not - the difference being the number of neutrons in the nucleus.
Some isotopes are radioactive, some are not.
FISSION. nobody on this website knows the answer..... SHAME
The word Radioactive usually denotes a substance containing unstable atomic nuclei.
radioactive elements
The Actinides.
Actinide Series.
We use the general term radioactive decay to identify the spontaneous breakdown of an atomic nucleus.
The element with an atomic number of 112 is called Copernicium. It is a synthetic, radioactive element that can only occur in a laboratory.
The high energy photon that results from the redistribution of the charge within the nucleus is called a gamma ray. It refers to a penetrating electromagnetic radiation that arises from the radioactive decay of atomic nuclei.
half-life people
All elements with an atomic number >83 are naturally radioactive
It isn't really an ELEMENT that is unstable, but an ISOTOPE. That means that in general, for the same element, some atoms will decay, and some will not - the difference being the number of neutrons in the nucleus.
They are called the trans-uranic elements. They are either synthetic or the rare product of radioactive decay.
You see it every day, it's called the sun:)
Radioactive wastes