JOHN DALTON

What about John Dalton? 

He was known as a famous Chemist, Meteorologist and physicist. He was also known for his theory about the atomic theory. His theory about atoms became famous because it led to logical explanation of concepts and led the way into new fields of experimentation.
His atomic theory explains the different concepts about matter like it’s weight and matter’s properties.

  

-an English chemist, meteorologist and physicist. He is best known for his pioneering work in the development of modern atomic theory, and his research into colour blindness.

-All of his contributions to science were made in spite of the fact that he was color bind.

-Father of aatomic theory and cumbrian.

-Dalton’s Billiard Ball model, atoms are solid and indevisble.

-Proposed the atomic theory which stated that all matters was composed of small indivisible particles called atoms.

-he orally presented an important series of papers, entitled "Experimental Essays" on the constitution of mixed gases.

-The son of a weaver, he joined his older brother Jonathan at age 15 in running a Quaker school in Kendal. In 1790 Dalton seems to have considered taking up law or medicine, but his relatives doesn’t like his projects.

-Dalton was chosen to be a  teacher of mathematics and natural philosophy at the "New College" in Manchester, until 1800. when the college's worsening financial situation led him to resign his post and begin a new career in Manchester as a private tutor for mathematics and natural philosophy.

-Dalton concluded from observations on the vapour pressure of six different liquids, that the variation of vapour pressure for all liquids is equivalent, for the same variation of temperature, reckoning from vapour of any given pressure.

-revived the ancient theory of atoms and prepared the first table of atomic weights, and announced his nations publicly in 1803. By the end of his life his atomic theory was widely accepted, and in 1833 he was awarded an annual pension from the king.

-John Dalton's atomic theory, which brought chemistry out of the alchemical era.

His theory is very helpful to the future chemists.
WHY?

Because he states some facts about matter, such as:

A. All matter is composed of atoms-as we all know that atoms is the simplest part of matter and that means all matter is composed of atoms.
B. Atoms cannot be made or destroyed- atoms are indivisible and so you cannot produce matter.
C. All atoms of the same element are identical- if an atom is contained in the same element then the elements in it are identical
D. Different elements have different types of atoms- This rule applies on the same rule of the letter C.
E. Chemical reactions occur when atoms are rearranged- When atoms are rearranged or disturb, most likely chemical reaction occur.
F. Compounds are formed from atoms of the constituent elements. 

Atomic Theory

That atomic theory of John Dalton is probably his greatest contribution in the field of science. But he also formulated some explanation that were famous like his explanation about color blindness. With his keen observation he was able to distinguish what being colorblind is and that sometimes Color blindness is also referred as the “Daltonism.” One explanation is the Behavior of Gases Dalton published several papers on similar topics, that on the absorption of gases by water and other liquids (1803), containing his law of partial pressures now known as Dalton's law. He also explained about things from the outer space or Meteorology.
So back to the atomic theory. The atomic theory, as mentioned, is his famous work. But, of course, all of us commit mistakes. He made a mistake that the simplest compound of two elements must be binary.
Even though his Atomic theory is a phenomenon, he, later “passed” his knowledge to a well known chemist too, Thomas Thomson. He died because of stroke. Sadly, he doesn’t have a wife and has only few friends. But It can’t be denied that John Dalton is a big personality in the field of chemistry.  

MEMBERS:

Racadio, Beybylyn

Ramento, Chai

Rariza, Chelsea

Reyes, Anna

Rimando, April 

SOURCES:
www.Wikipedia.com
www.rsc.org
www. Squidoo.com

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