Only when their outer shell is saturated>>>>>>>>>>>>
No, atoms with filled valence shells do not tend to form chemical bonds because a filled valence shell means the atom is already stable. It doesn't "want" to share with or take electrons from other atoms to become stable. Although sometimes, these atoms can be found in compounds, it takes a great deal of energy and forcing.
Unless it is an element that has a full valence shell naturally - like neon, krypton, etc. - atoms are incredibly unstable. When a compound is formed the atoms either share or exchange electrons in order to completely fill their valence shells. Unless it is an element that has a full valence shell naturally - like neon, krypton, etc. - atoms are incredibly unstable. When a compound is formed the atoms either share or exchange electrons in order to completely fill their valence shells.
Atoms gain, share, or lose electrons to try and become more stable. Atoms will gain, share, or lose electrons until they have a stable 8 valence electrons in their outer shell which is called an octet, which is stated in the octet rule. See the attached links for information on the octet rule.
An element that has one valence electron tends to be more reactive, is able to form ions, and can become charged When an element has all eight valence electrons, they are more stable.
In the short form: elements are striving to completely fill valence shells of electrons to reach a quantumly stable energy state. They react to take electrons away from elements willing to give up electrons or share outer shell electrons with elements they aren't strong enough to steal from.
valence electrons
Atoms combine in order to become stable, which for most atoms means having 8 valence electrons.
Yes, a covalent bond involve sharing of electrons between two atoms.
A stable atom has 8 electrons in its outer most valence shell. A simple way to remember this is that all atoms want to be like the noble gases which all have 8 electrons (except helium but the reason is complicated and not necessary here)
Atoms gain lose or share valence electrons in a way that makes the atoms more stable
Oxygen has six valence electrons, which means that it needs to gain two to become stable. it takes much more energy for oxygen to lose its 6 valence electrons than it would be to gain 2. When atoms form compounds, they become stable.
Oxygen has six valence electrons, which means that it needs to gain two to become stable. it takes much more energy for oxygen to lose its 6 valence electrons than it would be to gain 2. When atoms form compounds, they become stable.
The valence electrons are the outermost electrons. In an atom, its lower energy levels have been filled and are therefore stable. But, except for the noble gases, the valence energy level is not filled, and therefore not stable. So atoms must undergo chemical reactions in order to fill their valence shells and become stable. They can do this by sharing electrons, transferring electrons, or by forming a sea of electrons shared by all the atoms.
They share their valence electrons
No, sulfur has only 6 valence electrons. Atoms with 8 valence electrons are most stable and generally chemically inert.
the octet rule does
they become stable as they have completely filled outermost valence shell and if they have no electron in their outermost shell they become non reactive.