Valence (chemistry) - Wikipedia
网页In chemistry, the valence (US spelling) or valency (British spelling) of an atom is a measure of its combining capacity with other atoms when it forms chemical compounds or molecules. Valence is generally understood to be the number of chemical bonds that each atom of a given chemical element typically forms.
What Is Valency? - Difference between Valency & Oxidation …
网页Define Valency. The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element. We all know how electrons in an atom are arranged in shells/orbitals. Valence electrons are those electrons which are present in the outermost orbit of the atom.
VALENCY中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页a measurement that shows the number of hydrogen atoms that can combine with one atom of a particular chemical element to make a compound, used to describe how easily an …
What Is Valence or Valency in Chemistry? - ThoughtCo
网页2018年9月30日 · The words valence and valency have two related meanings in chemistry. Valence describes how easily an atom or radical can combine with other chemical species. This is determined based on the number of electrons that would be added, lost, or shared if it reacts with other atoms.
Valence | Atomic structure, Electron configuration & Bonding
网页Valence, in chemistry, the property of an element that determines the number of other atoms with which an atom of the element can combine. Introduced in 1868, the term is used to express both the power of combination of an element in general and the numerical value of the power of combination.
Valency Chart (Valency Table of Chemical Elements)
网页Valency is defined as the number of hydrogen atoms which combine directly or indirectly with one atom of an element. Example: One atom of nitrogen combines with three atoms of hydrogen to form ammonia gas. So, the valency of nitrogen is 3.
Valency (linguistics) - Wikipedia
网页In linguistics, valency or valence is the number and type of arguments and complements controlled by a predicate, content verbs being typical predicates. Valency is related, though not identical, to subcategorization and transitivity, which count only object arguments – valency counts all arguments, including the subject.
Khan Academy
网页Explanation of valence electrons and their role in chemical bonding, including how they determine the reactivity of elements.
Valence and the Periodic Table - Chemistry LibreTexts
网页2023年6月13日 · Using Cannizzaro's atomic weights, Mendeleev and Lothar Meyer made a great discovery, the periodic law: If you arrange the elements by their atomic weights, there is a periodic repetition in properties such as valence. The modern version of this periodic arrangement is the Periodic Table.
What Are Valence Electrons? Definition and Periodic Table
网页2021年3月3日 · Valency is the number of electrons in an atom’s outermost electron shell. Oxidation state reflects the number of electrons that an atom actually can gain, lose, or share with another atom. The number of valence electrons indicates the maximum number of chemical bonds an atom can form, while oxidation state does not.
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