化学中常见英语单词或词组的英文翻译.docVIP

化学中常见英语单词或词组的英文翻译 AcidA compound that yields H+ ions in solution or a solution with the concentration of H+ exceeding OH-.Acid ionization constantThe equilibrium constant describing the degree of dissociation of an acid. ActinidesThe row of elements below the periodic table, from thorium to lawrencium. AlkaliSynonym for base. Alkali metalsThe column of elements from lithium to francium. Alkaline earthsThe column of elements from beryllium to radium. AlkaneA hydrocarbon without a double bond, triple bond or ring structure. AlkeneA hydrocarbon with one or more double bonds and no triple bond. AlkyneA hydrocarbon with one or more triple bonds. Alpha particleA cluster of 2 protons and 2 neutrons emitted from a nucleus in one type of radioactivity. AnionAn atom or molecule with a negative charge. AnodeThe negative electrode at which oxidation occurs. AqueousRefers to a solution with water as solvent. AromaticRefers to an organic compound with a benzene-like ring. AtomThe smallest amount of an element; a nucleus surrounded by electrons. Atomic numberThe number of protons in the nucleus of the chemical element. Atomic weightThe weight in grams of one mole of the chemical element; approximately the number of protons and neutrons in the nucleus. Avogadros LawEqual volumes of gases contain the same number of molecules. Avogadros Number6.02 x 1023 , the number of molecules in 1 mole of a substance. BaseA compound that yields OH- ions in solution or a solution with the concentration of OH- exceeding H+.Beta particleAn electron emitted from a nucleus in one type of radioactivity. Boiling pointThe temperature at which a liquid changes to a gas. Boiling point elevationAn increase in the boiling point of a solution, proportional to the concentration of solute. Boyles LawThe volume of a gas varies directly with temperature. CalorieA unit of energy, equal to 4.184 joules. CatalystA substance that accelerates a chemical reaction without