It is very stable
#APEX :P
When atoms do not have a full valence shell, the atoms are more likely to react with other different atoms to form chemical bonds. The only atoms that do have a full valence shell are the noble gases, and they are the least reactive of all atoms.
It becomes stable (stable= not likely to react) and an ion. If you add electrons to make it full it's an anion (negative charge) , and i f you take away electrons to make it full it's a cation(positive charge)
An atom with a full valence shell is a stable atom. It won't bond anymore and is considered stable. The noble gases all have full valence shells.
No often but they can. There are some noble gas compounds such as xenon tetrafluoride (XeF4), but may of these compounds are unstable.
It is very stable
5 valence electrons
There are 8 Valence Electrons.
Electrons are those found in the outermost energy level of an atom?They are called valence electrons.
All electrons in an atom have: * a negative one charge * 1/2 spin * 0.511 MeV of mass
The electron. The electron is has a negative charge. The more electrons that are in a valence shell of the atom the more negative the atom will be.
They are called valence electrons, and they are responsible for an atom's chemical properties. During a chemical reaction, the valence electrons are the only part of an atom that participates.
Gains, Positive
Halogens, they have 7 valence electrons and thereform bond to form the octet
B in BH3 has an incomplete octet because it only has 6 valence electrons. 3 of its own and 1 from each hydrogen The central atom does not have 8 valence electron in the molecule.
2
The valence electrons are the only electrons that are involved in chemical bonding. These electrons can be shared or transferred. A simple rule of thumb is that atoms "strive" to attain the octet either by loss gain or sharing of electrons.
It means that there are 8 electrons in the outer most shell of the atom. Atoms with 8 valence electrons are generally stable.
if it is a noble gas it already has an octet, otherwise, it would need to gain or use electrons to complete an octet and would no longer be neutral or unbounded.
A complete octet of electrons (8) in the outer-most, or valence, shell.
The octet rule cannot be satisfied in molecules whose total number of valence electrons is an odd number.There are also molecules in which an atom has fewer, or more, than an octet of valence electrons.
There are 2 valence electrons in an atom of magnesium. There are 5 valence electrons that are in an atom of phosphorus. There are 4 valence electrons that are in a silicon atom.
The electrons farthest away from the nucleus are the valence electrons of an atom.