| 释义 |
Dalton's atomic theory
Dalton's atomic theory (ˈdɔːltənz) n (Chemistry) chem the theory that matter consists of indivisible particles called atoms and that atoms of a given element are all identical and can neither be created nor destroyed. Compounds are formed by combination of atoms in simple ratios to give compound atoms (molecules). The theory was the basis of modern chemistry[C19: named after John Dalton]Dalton's atomic theory
Dalton's atomic theory[′dȯl·tənz ə‚täm·ik ′thē·ə·rē] (chemistry) Theory forming the basis of accepted modern atomic theory, according to which matter is made of particles called atoms, reactions must take place between atoms or groups of atoms, and atoms of the same element are all alike but differ from atoms of another element. |