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“valence”
valence, valency
In chemistry, the capacity of an atom or group of atoms to combine in specific proportions with other atoms or groups of atoms.
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valid-, val-, vale-, -vail, -valent, -valence
(page 7)
(Greek: a suffix; pertaining to; of the nature of, like; in chemistry, it denotes a higher valence of the element than is expressed by -ous)
(Latin: full of or having the qualities of; in chemistry, a suffix denoting that the element indicated by the name bearing it, has a valence lower than that denoted by the termination -ic; as, nitrous, sulphurous, etc., as contrasted with nitric, sulphuric, etc.)
(Latin: valere, to be strong, to be well, to be worth; strong; power, strength; and "fare well" [go with strength])
Word Entries containing the term:
“valence”
electrostatic valence rule
1. A rule stating that in a stable state, valence (combining power) of negatively charged atoms equals the total strength of the bonds that they have formed with nearby positively charged ions.
2. A concept that in a stable ionic structure, the valence of each anion, with changed sign, equals the sum of the strengths of its electrostatic bonds to the adjacent cations or atoms or groups of atoms with one or more positive or negative electric charges.
2. A concept that in a stable ionic structure, the valence of each anion, with changed sign, equals the sum of the strengths of its electrostatic bonds to the adjacent cations or atoms or groups of atoms with one or more positive or negative electric charges.
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electro-, electr-, electri-
(page 86)
valence electron
One or more of the electrons in an atom's outermost, incomplete electron shell.
Such electrons are exchanged or shared in chemical reactions.
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electro-, electr-, electri-
(page 102)
Word Entries at Get Words containing the term:
“valence”
valence band
The highest energy band in a semiconductor that can be filled with electrons.
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Photovoltaic Conversion Efficiency Terms +
(page 23)
valence level energy/valence state; bound state
Energy content of an electron in orbit about an atomic nucleus.
This entry is located in the following unit:
Photovoltaic Conversion Efficiency Terms +
(page 23)