yaravega yaravega

10-06-2014
Chemistry

Answered

explain how the number of valence electrons in atoms relate to their bonding with other atoms to form molecules ?????

Answer :

10-06-2014

valence electrons are the number of electrons in the outer shell. there can only be 8 electrons in the outer shell. The number of valence electrons can be used to determine how many bonds are needed.

For example: H2O

O (oxygen) has 6 valence electrons
H (hydrogen) has 1 valence electron

O needs 2 more electrons to be stable
H needs 1 more electron to be stable

O forms one bond with two H atoms to form H2O.

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