its because some are naturally stable like helium, when some like hydrogen have an extra electron in their electron clouds. That's why they are unstable. When they meet with an element with one extra electron they can be stable because the first electron cloud holds 2 electrons. ex. :
hydrogen - 1 electron
hydrogen - 1 electron
adding both together will give you a full eletron cloud.
Hope this helps!
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.
When an element enters into a compound, a chemical reaction occurs. This means that the elements chemically combine and sub-atomic particles transfer between the elements involved. An Example of a Compound: Sodium Chloride (Table Salt): Sodium + Chlorine --> Sodium Chloride
Every element that isn't a noble gas, wants to become isoelectronic or have the same number of electrons as its nearest noble gas. This is because noble gases are very stable, while other elements aren't. Forming compounds allows elements to gain or lose electrons, which allows them to become like their nearest noble gas.
They are called ions
It is the unstable isotopes of elements that decay over time. All elements have an isotope or isotopes that are unstable and will decay over time. (These isotopes will be either naturally occurring or will be synthetic.) Some isotopes of some elements, however, are stable, and they will not undergo radioactive decay.To discover what's what, we have to do some homework, and what better place to start than the table of nuclides? It lists all the elemets, and all the isotopes of each element. Further, it tells us which ones are stable, which are unstable, and will also help us determine the decay mode of the unstable nuclides.
because of the valence toms
because of the valence toms
because of the valence toms
because of the valence toms
The elements in the group known as the halogens (Group 17) are always linked with others to form compounds due to their high reactivity and tendency to gain an electron to achieve a stable configuration. This group includes elements like chlorine, fluorine, and iodine.
No, not only phosphorus can form stable compounds. Many elements can combine to form stable compounds depending on their chemical properties and bonding capabilities. These compounds can be created through various chemical reactions involving different elements.
For example, xenon, a noble gas can form stable compounds.
because of the valence toms
Each element can form stable, less stable or unstable compounds.
it tells how many atoms are in the unit to be stable
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.
No, a stable compound cannot be formed by oxygen and lithium because lithium is a highly reactive metal that tends to form ionic compounds with other elements rather than stable covalent compounds. Oxygen typically forms stable compounds with elements that have similar electronegativity values, such as other non-metals.