Noble/inert gases
All elements , except the trans-uranic(Actinides) are atomically stable. The Actinides being the most massive elements are unstable and spontaneously breakdown into smaller less massive elements. The most massive element that is atomically stable is 'lead' ( Pb ; Plumbum).
Unstable elements are radioactive elements that spontaneously decay into other elements. Some are: Radon Uranium Plutonium See the related link for an article giving greater detail on isotope stability.
Thare are only 6 elements with stable electrons, they are known as the noble gases. They are Helium, Neon, Argon, Krypton, Xenon and Radon.
Inert gases, also known as noble gases, are elements that do not react rapidly with other elements because they have a full outer electron shell, making them stable. Examples include helium, neon, and argon.
Yes, these chemical elements are stable.
Elements are stable when they have completely filled (or half filled) orbitals.
STABLE all the way!
Yes, these chemical elements are stable.
Elements with no stable isotopes are called radioactive elements. These elements spontaneously undergo radioactive decay, which leads to the formation of stable isotopes over time.
Stable elements do not react because they don't need to. Elements react so that they can gain stability( as stability is gained by filling the outer most shell of the atom). As stable elements already have full outer shells and are stable , they do not react.
The group of elements that have a stable electron configuration are the noble gases.
Mono isotopic elements are stable isotope of an element.From 80 isotopic elements there are 26 radioactive elements discovered up till now.These mono isotopic may or may not be radioactive if they are radioactive they have halve lives.