The+John+Dalton+Hall

**Welcome to the John Dalton Hall:** **Born:** John Dalton was born on September 6th, 1766 in Eaglesfield, Cumberland, England.  John Dalton was a British chemist and physicist. He was born at Eaglesfield near Cockermouth in Cumberland. Dalton had a brother and a sister named Jonathan and Mary. Dalton received his early education from his father and John Fletcher, who at the time a teacher at a Quaker school at Eaglesfield. Upon Fletcher’s retirement in 1778, Dalton at the age of 12 started teaching himself. Dalton began teaching at Quaker School in his native town. In 1781 he moved to Kendal, where he taught at a school with his cousin and his elder brother. In 1793 he went to Manchester where he spent the rest of his life as a teacher. He originally taught at New College, and later transitioned into a private tutor. Dalton was modest, made up of an inquisitive nature and thrived off of researching information to help him better understand his surroundings. He made careful studies of color-blindness, of which he suffered from himself. He was also a pioneer meteorologist and his fascination with the atmosphere and weather led to his research into the nature of gases, which in turn became the basis of which he built his atomic theory off of. He documented all of his findings in a journal he kept up with for years. When all his observations and theories came together he would simply document his findings in his notebook. These books were later found after bombings in Manchester during World War II.**
 * Died: ** Dalton died on July 7th, 1844. He never took a wife and remained a life long bachelor.

The basic ideas of Dalton's theory consisted of: ** --- Using his theory, Dalton rationalized the various laws o ​ f chemical combination which was in existence at that time. However, he made a mistake in assuming that the simplest compound of two elements must be binary, formed from atoms of each element in a 1:1 ratio, and his system of atomic weights was not very accurate - he gave oxygen an atomic weight of seven instead of eight. Despite these errors, Dalton's theory provided a logical explanation of concepts, and led the way into new fields of experimentation.
 * All matter is composed of atoms, and atoms can neither be created nor destroyed.
 * All atoms of the same element are identical; different elements have different types of atoms.
 * Compounds are formed from atoms of the constituent elements.
 * Chemical reactions occur when atoms are rearranged.

Any good thing is sure to have errors and John Dalton's theory was a prime example of this. 1. Gave oxygen an atomic weight of seven and not eight. 2. Dalton assumed that the simplest compound of two elements must be binary. 3. Atom can be split into smaller ones. 4. Nuclear reactions can destroy atoms.
 * Dalton **** had four main errors in his theory and they were: **

1776 – The American Revolution Begins. 1789 – The French Revolution Begins. 1803 – Dalton’s atomic theory is done and discovered! 1837 – Samuel Morse invents the first American telegraph. 1840 – In Britain, the first postage stamps are sold.
 * At that time there were also many other occurring, these include**:

Sources: [|http://www.iun.edu/~cpanhd/C101webnotes/composition/dalton.html] [] [] [] [] []

By: Jordan, Kamile, and AJ