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Fluorine has 7 valence electrons. In order to become stable, Florine will share 1 electron with another atom to get 8 electron and become stable.
Atoms combine in order to become stable, which for most atoms means having 8 valence electrons.
There are six electrons in two shells.In order to stable carbon, it take electrons from nearest noble gas to stable the carbon.It order to stable carbon it gain -4 electrons from the nearest noble gas Neon.
Noble gases are inert because they contain a "stable octet" of electrons in the outermost shell of the atom (valence electrons). This means that the noble gases do not need to react to lose or gain electrons in order to become stable, since scientists have determined that 8 valence electrons is a stable electron configuration.
A positive ion, also known as a cation, has a positive nuclear charge. For example, Na+1, Mg+2, and Al+3 are all positive ions, because they tend to give away electrons to have a full eight electrons in its last shell and become stable. O-2, F-1, and I-1 are all anions, negatively charged ions. They tend to gain electrons to have a full eight electrons in its last shell and become stable.
A chlorine atom needs one additional electron in order to become stable.
The metals aluminum, calcium, and potassium will give up electrons to be stable. Chlorine is a nonmetal and it will gain an electron in an ionic bond in order to be stable.
The electrons are not lost, they are transferred. Sodium Chloride is an ionic compound whereby Sodium needs two 2 electrons to fill its valence shell and become stable. Chlorine needs to lose two electrons in order to have a complete and stable atom. Both atoms are more stable together than apart. This is the reason why atoms form compounds.
Nonmetals
Chlorine will gain one electron in order to establish a full outer shell of electrons. Chlorine atoms have 7 valence electrons, but with one extra electron, it can establish a stable octet.
Cl - This means that Chlorine has an extra electron, so it's negative. Chlorine already has 7 electrons and in order to be stable, it only needs one more electron.
5 valence electrons because it needs to gain 3 electrons in order to become stable
A neutral chlorine atom has 7 valence electrons and needs one more valence electron in order to be stable with an octet. A chlorine molecule consists of two chlorine atoms that have formed a covalent bond between them, so that each chlorine atom effectively has an octet of valence electrons, which makes the chlorine atoms stable. A chloride ion is a chlorine atom that has gained an electron, becoming a charged particle with a charge of 1-.
Chlorine's structure makes it very reactive (it is in group VII of the Periodic Table and therefore needs to gain one electron in order to become stable)!
A lone chlorine atom has 7 outer shell electrons, 1 electron short of a full outer shell of 8 electrons, which is stable. In order to achieve this full outer shell two chlorine atoms share a pair of electrons, with each atom contributing 1 electron to the pair. By sharing electrons in this manner the chlorine atoms achieve a full outer shell.
It would have to lose two electrons.
All the atoms in the universe have a tendency to become stable by having 2 or 8 electrons in their outermost cells. So, if an atom has very few electrons i.e 1,2,3 or 4 electrons in it's outermost cell it will tend to loose electrons in order to become stable. hope it helps!