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valency

n. 原子價

原子價

WordNet (r) 3.0 (2006) (WordNet)

valency
n 1: the phenomenon of forming chemical bonds
2: (biology) a relative capacity to unite or react or interact
as with antigens or a biological substrate [synonym: {valence},
{valency}]
3: (chemistry) a property of atoms or radicals; their combining
power given in terms of the number of hydrogen atoms (or the
equivalent) [synonym: {valence}, {valency}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Valency \Val"en*cy\, n.; pl. {Valencies}. (Chem.)
(a) See {Valence}.
(b) A unit of combining power; a so-called bond of affinity.
[1913 Webster]

The Free On-line Dictionary of Computing (foldoc)

{degree}

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英文字典中文字典相關資料:

Variable Valency Covalency in Chemistry - Study. com
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Potassium has one valence electron so its valency is +1 Chlorine has seven valence electrons so its valency is -1 Thus, for a neutral formula unit,
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What is the valency of magnesium? - Homework. Study. com
The valence or valency refers to the ability of the atom of a chemical element to bond with other atoms to form other substances by determining the number of electrons in its outermost atomic orbital Answer and Explanation: 1 The valency of magnesium is 2 Magnesium has an atomic number of 12, and it belongs to the second group in the periodic
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The valency of oxygen is -2 This means oxygen needs to gain or share two electrons for stability Remember, electrons are negative, which is why the
What is the valency of peroxide? - Homework. Study. com
The valency of peroxide is 2 Valency for polyatomic ions is the absolute value of the charge on the ion The valencies of ions can be thought of as
What is the valency of hydrogen? - Homework. Study. com
Valency: Remember that atoms are made of electrons, protons, and neutrons Protons and neutrons make up the nucleus Electrons are outside the nucleus and responsible for bonding Valency describes the number of electrons an atom needs to share, gain, or lose to form a bond Answer and Explanation: 1 Become a Study com member to unlock this answer!
Hume-Rothery Rules | Conditions Examples - Study. com
Valency Valency is the number of electrons that an atom uses when bonding with other atoms It is closely related to the number of electrons in an atom's outer shell
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What is a sulfate? Learn about sulfates, their properties, and the uses of their compounds See sulfate structure with charge and chemical formula

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