the noble gases
All radioactive elements are unstable. Most isotopes of elements in periodic table are radioactive. Overall, most of the elements are unstable but they are present in traces on earth. Most elements on earth are stable.
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).
Yes, these chemical elements are stable.
STABLE all the way!
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.
because of the valence toms
because of the valence toms
Neon is a stable noble gas as it has a full outer electron shell. Carbon can form stable bonds with other elements due to its ability to form multiple bonds. Boron is not typically stable on its own, but can form stable compounds with other elements. Fluorine is a highly reactive nonmetal and typically forms stable compounds with other elements.
The noble gases (aka inert gases) are the most stable elements.
because of the valence toms
because of the valence toms
because of the valence toms
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.
All radioactive elements are unstable. Most isotopes of elements in periodic table are radioactive. Overall, most of the elements are unstable but they are present in traces on earth. Most elements on earth are stable.
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).
Some elements are stable on their own because they have a complete outer energy level. These elements are called noble gases. Hydrogen and Helium have a complete energy level with two electrons and all of the other elements are stable with eight. When an element doesn't have a complete outer energy level it is stable in a compound. This is because it is being combined with another element to complete it's energy level.
the most stable element group is the noble gases group