What is Valance (Chemistry)? In easy words.

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trophyhunter1 | College Teacher | (Level 1) Educator Emeritus

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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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atyourservice | Student, Grade 11 | (Level 3) Valedictorian

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

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acompanioninthetardis | Student, Undergraduate | (Level 1) Valedictorian

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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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