A valence electron is a type of electron present in an atom that works to aid in the process of chemical bond formation with other atoms. These electrons are present in the outer shell of an atom. More »

Chlorine has seven valence electrons. These seven electrons make chlorine a very reactive element. Chlorine, like the other elements belonging to the halogen family of the periodic table, grabs an electron from another e... More »

Oxygen has six valence electrons and is assigned a valence number of 2. This means it needs two electrons to satisfy its bonding requirements. When these two electrons come from two hydrogen atoms, the three atoms togeth... More »

A polar bond is a type of bond that is formed between two atoms that are sharing an electron, where one atom has a stronger attraction, or pull, on the electron than the other. A polar bond is a type of covalent bond, wh... More »

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A nonpolar covalent bond is a type of bond between two identical nonmetallic atoms where the two electrons are shared equally by each atom. It is different from a polar covalent bond, in that involves the electrons being... More »

To find the valence electrons in an atom, identify what group the element is in. An element in group 1A has 1 valence electron. For example, Li is in group 1A, so that means it has one valence electron. If the element is... More »

Atoms become chemically stable by losing, gaining or sharing electrons with other atoms to fill up their outermost electron shell. This allows them to obtain the electron configuration of the nearest noble gas. More »