Any of the noble gases (in the right-most column of the Periodic Table): helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) radon (Rn), and Hydrogen.
They all have what is called a stable "octet."
See the Related Questions for more information on what the octet rule in chemistry is.
a stable atom is and atom with a full outer ring. Its not the best picture
Uranium :P
the unstable nucleus of an atom
A radioisotope is an atom that has an unstable nucleus characterized by excess energy.
the absorption of a free-moving neutron by the atom's nucleus
If you are looking for the most chemically reactive atom or element, it is fluorine. As regards which atom is the most active in its nucleus, there are a lot of very unstable radioactive atomic nuclei. Some are so unstable that they can only exist for a small fraction of a second, or, more properly, have an extremely short half-life.
You don't really need equipment to change the nucleus of an atom. If the atom is radioactive, then it is inherently unstable, and it will change of its own accord, and on its own time frame, relative to half-life.
An unstable atom is a radioactive atom.
it might not be unstable with anything.......
it might not be unstable with anything.......
A radioactive atom is an atom of an element with an unstable nucleus.
Any atom in the first family of the periodic table of elements is very unstable.
no
The stability of the positive ion depends on the atom which removes the electron. As an example, when a sodium atom becomes positive, it is highly stable, on the contrary, when a chlorine atom becomes positive, it is highly unstable.
The numbers listed represent the first, second and third energy levels, respectively. On this basis, which of the following is an unstable or reactive atom? 2, 8, 1
isotope
radioisotope
the unstable nucleus of an atom
unstable, radioactive