3. 3 Dalton deduced that matter is made of atoms John dalton reintroduced the atomic ideas of democritus 1. Each element consists of indivisible, minute particles called atoms.(not completely correct) 2. Atoms can be neither created nor destroyed in chemical reactions 3. All atoms of a given element are identical. (not completely correct 4. Atoms chemically combine in definite whole-number ratios to form compounds 5. Atoms of different elements have different masses 道尔顿,J3.3 Dalton deduced that matter is made of atoms John Dalton reintroduced the atomic ideas of Democritus: 1. Each element consists of indivisible, minute particles called atoms. (not completely correct) 2. Atoms can be neither created nor destroyed in chemical reactions. 3. All atoms of a given element are identical. (not completely correct) 4. Atoms chemically combine in definite whole-number ratios to form compounds 5. Atoms of different elements have different masses