Not who you're looking for? Others named John Dalton: British chemist and mathematician (1766–1844) · American writer (born 1963) · English politician, died 1679 · sculpture by Ruby Levick
“1. Small particles called atoms exist and compose all matter; 2. They are indivisible and indestructible; 3. Atoms of the same chemical element have the same chemical properties and do not transmute or change into different elements.”
“Now it is one great object of this work, to shew the importance and advantage of ascertaining the relative weights of the ultimate particles, both of simple and compound bodies, the number of simple elementary particles which constitute one compound particle, and the number of less compound particles which enter into the formation of one more compound particle.”
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