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2026-02-14

“pentavalent”的英文意思

单词 pentavalent
释义 pentavalent, a. Chem.|pɛnˈtævələnt|
[f. penta- + L. valēnt-em having power or value.]
Having the combining power of five atoms of hydrogen or other univalent element; quinquivalent.
1871Roscoe Elem. Chem. 174 The elements of the nitrogen group possess a peculiarity by which they frequently appear as if they were pentavalent.1881A. W. Williamson in Nature XXIV. 418/1 An atom of nitrogen or of antimony is only known to be trivalent in combination with hydrogen; but each of them occurs in form of a pentavalent compound with chlorine.
“pentavalent”的英文意思

 

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