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Dalton's Atomic structure (jan 1, 1803 – dec 31, 1803)

Description:

proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

Added to timeline:

Date:

jan 1, 1803
dec 31, 1803
~ 12 months