主题：化学中常见英语单词或词组的英文解释

Acid
A compound that yields H+ ions in solution or a solution with the concentration of H+ exceeding OH-.
Acid ionization constant
The equilibrium constant describing the degree of dissociation of an acid.
Actinides
The row of elements below the periodic table, from thorium to lawrencium.
Alkali
Synonym for base.
Alkali metals
The column of elements from lithium to francium.
Alkaline earths
The column of elements from beryllium to radium.
Alkane
A hydrocarbon without a double bond, triple bond or ring structure.
Alkene
A hydrocarbon with one or more double bonds and no triple bond.
Alkyne
A hydrocarbon with one or more triple bonds.
Alpha particle
A cluster of 2 protons and 2 neutrons emitted from a nucleus in one type of radioactivity.
Anion
An atom or molecule with a negative charge.
Anode
The negative electrode at which oxidation occurs.
Aqueous
Refers to a solution with water as solvent.
Aromatic
Refers to an organic compound with a benzene-like ring.
Atom
The smallest amount of an element; a nucleus surrounded by electrons.
Atomic number
The number of protons in the nucleus of the chemical element.
Atomic weight
The weight in grams of one mole of the chemical element; approximately the number of protons and neutrons in the nucleus.
Avogadro's Law
Equal volumes of gases contain the same number of molecules.
Avogadro's Number
6.02 x 1023 , the number of molecules in 1 mole of a substance.

化学中常见英语单词或词组的英文翻译
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