John Dalton
Born: September 5th, 1766
Died: July 27th, 1844
John Dalton recieved most of his early education from his teacher, John Fletcher, at
the Quakers’ school in Eaglesfield. When Fletcher retired in 1778, Dalton began teaching. He spent most of his life teaching and giving lectures. After teaching for ten years at the
Quaker boarding school in Kendal, he took another teaching job in Manchester in 1793. He taught math and natural philosophy at the new College until 1800, when he
quit because of the college's financial problems. Dalton later gave private tuitions in math
and natural philosophy.
John Dalton’s Atomic theory has a few principles that continue to be unchanged.
1. Elements are made of the smallest particles called atoms.
2. All atoms for a particular element are identical.
3. Atoms of different elements can be told apart by their atomic weight.
4. Atoms of different elements can combine in a chemical reaction to form chemical compounds in fixed ratios.
5. Atoms cannot be created, destroyed, or divided as they are the smallest particles of matter.
Dalton is known as the "Father of Modern Atomic Theory" (which he proposed in 1808). He developed
the Mole Concept and proposed the System of Symbols.
Died: July 27th, 1844
John Dalton recieved most of his early education from his teacher, John Fletcher, at
the Quakers’ school in Eaglesfield. When Fletcher retired in 1778, Dalton began teaching. He spent most of his life teaching and giving lectures. After teaching for ten years at the
Quaker boarding school in Kendal, he took another teaching job in Manchester in 1793. He taught math and natural philosophy at the new College until 1800, when he
quit because of the college's financial problems. Dalton later gave private tuitions in math
and natural philosophy.
John Dalton’s Atomic theory has a few principles that continue to be unchanged.
1. Elements are made of the smallest particles called atoms.
2. All atoms for a particular element are identical.
3. Atoms of different elements can be told apart by their atomic weight.
4. Atoms of different elements can combine in a chemical reaction to form chemical compounds in fixed ratios.
5. Atoms cannot be created, destroyed, or divided as they are the smallest particles of matter.
Dalton is known as the "Father of Modern Atomic Theory" (which he proposed in 1808). He developed
the Mole Concept and proposed the System of Symbols.