What is Valance (Chemistry)? In easy words.

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trophyhunter1 eNotes educator| Certified Educator

In chemistry, the term valence measures the number of bonds formed by an atom of a particular element. This depends on the number of valence electrons that are involved in forming valence bonds. For example, an atom which has a valence of one can form one covalent bond. Nitrogen has three valence electrons and can form a maximum of three valence bonds. When observing the periodic table of elements, elements in the main groups 1 and 17 have a valence of 1. Elements in groups 2 and 16, have a valence of 2. Elements in groups 14 and 15 have a valence of 3. And elements in group 14 have a valence of 4. Valence is determined by the number of electrons in the outermost or valence shell.

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givingiswinning | Student

the outer level of a electrons.

atyourservice | Student

Valence is the outer level of a electrons. For example a valence electron is an electron on the highest level (ring) of an element.

valence, in chemistry makes me think of valence electrons, and valence electrons are electrons that are on the most outer ring of the atom. So i would say valence means outer or farthest from the center. 

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