- chemical atomic weight
- 化学原子量
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
chemical atomic weight
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Atomic weight — (symbol: A sub|r) is a dimensionless physical quantity, the ratio of the average mass of atoms of an element (from a given source) to 1/12 of the mass of an atom of carbon 12.cite journal | author = International Union of Pure and Applied… … Wikipedia
Atomic weight — Atomic A*tom ic, Atomical A*tom ic*al, a. [Cf. F. atomique.] 1. Of or pertaining to atoms. [1913 Webster] 2. Extremely minute; tiny. [1913 Webster] {Atomic bomb}, see {atom bomb} in the vocabulary. {Atomic philosophy}, or {Doctrine of atoms}, a… … The Collaborative International Dictionary of English
atomic weight — Chem. the average weight of an atom of an element, formerly based on the weight of one hydrogen atom taken as a unit or on 1/16 the weight of an oxygen atom, but after 1961 based on 1/12 the weight of the carbon 12 atom. Abbr.: at. wt. [1820 30]… … Universalium
chemical atomic weights — Element El e*ment, n. [F. [ e]l[ e]ment, L. elementum.] 1. One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based. [1913 Webster] 2. One of the… … The Collaborative International Dictionary of English
atomic weight — noun (chemistry) the mass of an atom of a chemical element expressed in atomic mass units • Syn: ↑atomic mass, ↑relative atomic mass • Topics: ↑chemistry, ↑chemical science • Hypernyms: ↑ … Useful english dictionary
gram-atomic weight — gram atom·ic weight also Brit gramme atom·ic weight ə täm ik n the mass of one mole of a chemical element equal in grams to the element s atomic weight … Medical dictionary
List of elements by atomic weight — This is a list of chemical elements, sorted by standard atomic weight (most stable isotope for artificial elements) and color coded according to type of element. Each element s atomic number, name, element symbol, and group and period numbers on… … Wikipedia
Atomic — A*tom ic, Atomical A*tom ic*al, a. [Cf. F. atomique.] 1. Of or pertaining to atoms. [1913 Webster] 2. Extremely minute; tiny. [1913 Webster] {Atomic bomb}, see {atom bomb} in the vocabulary. {Atomic philosophy}, or {Doctrine of atoms}, a system… … The Collaborative International Dictionary of English
Atomic bomb — Atomic A*tom ic, Atomical A*tom ic*al, a. [Cf. F. atomique.] 1. Of or pertaining to atoms. [1913 Webster] 2. Extremely minute; tiny. [1913 Webster] {Atomic bomb}, see {atom bomb} in the vocabulary. {Atomic philosophy}, or {Doctrine of atoms}, a… … The Collaborative International Dictionary of English
Atomic philosophy — Atomic A*tom ic, Atomical A*tom ic*al, a. [Cf. F. atomique.] 1. Of or pertaining to atoms. [1913 Webster] 2. Extremely minute; tiny. [1913 Webster] {Atomic bomb}, see {atom bomb} in the vocabulary. {Atomic philosophy}, or {Doctrine of atoms}, a… … The Collaborative International Dictionary of English
Atomic theory — Atomic A*tom ic, Atomical A*tom ic*al, a. [Cf. F. atomique.] 1. Of or pertaining to atoms. [1913 Webster] 2. Extremely minute; tiny. [1913 Webster] {Atomic bomb}, see {atom bomb} in the vocabulary. {Atomic philosophy}, or {Doctrine of atoms}, a… … The Collaborative International Dictionary of English
