Daily 40 no. – 11 John Dalton

Daily 40 no. – 11 John Dalton
Daily 40 Hall of Fame! Congratulations to these writers!
John Dalton (1766 – 1844) was an English chemist who helped develop the atomic model. Dalton’s
theory stated that atoms made up elements, atoms of elements weighed differently, elements can combine
to form compounds, and they cannot be created nor destroyed, a step forward toward the modern
periodic table. --Jeff
English chemist and atomic theorist John Dalton (1766-1844) published a table of relative atomic
weights and created symbols for different elements and compounds. He theorized that compounds were
made up of atoms in fixed whole-number ratios and that atoms cannot be created or destroyed in
chemical reactions (conservation of matter). --Chantal
The chemist John Dalton lived from 1766-1844 in England. He wrote a journal entitled “Observations
on the Weather,” which helped him form his atomic theory. Dalton asserted that atoms could be weighed,
and introduced the Law of Multiple Proportions, emphasizing whole number ratios between weights of
atoms in compounds. --Christine
English chemist John Dalton, born 1766, developed an atomic theory which states that all elements are
composed of atoms (indivisible particles) that can combine with one another to form compounds. He
also published a table of relative atomic weights and invented his own chemical symbols to represent
each element. --Dawy
John Dalton, an English chemist from 1766-1844, is best known for developing the atomic theory.
Instead of a universal matter, he thought there were varying types of atoms. He named the atoms with
different symbols and created the Law of Multiple Proportions by weighing the atoms with relative
weights. --Isaac
ALSO: SEE JAYA'S CHART BELOW UNDER HER ARTICLE
John Dalton was born in 1766 in England and died in 1844. He is known mostly for his work in the
creation of the modern atomic theory. Dalton also identified fifty elements and began giving them picture
symbols and discovering ratios between elements to create certain substances. --Alanna
John Dalton, born 1766, was an English atomist known for his work in developing modern atomic theory.
He believed that elements were made of the same type of atoms which were different from the atoms of
other elements. Dalton is also known for his law of partial pressures. --Andrew
John Dalton (1766-1844) believed that atoms exist but he moved further by thinking that there are
different kinds of atoms as there were elements. Further, he invented the idea of using symbols to
represent the atoms of an element. He also weighed atoms by using the concept of relative weigh.
--Dee Dee
John Dalton (1766-1844) an English chemist that pioneered the atomic theory. He was the first to stray
from the ideas of the Greek philosophers by stating that elements were composed of atoms, which had
different masses. The atoms would differ in mass, size and chemical behavior that determined the
element. --Denise
Daily 40 no. – 11 John Dalton
John Dalton, an English chemist, lived from 1766 to 1844. His atomic theory was that different elements
were made of different atoms, contrary to the idea of universal atoms. His idea was correct, as displayed
in the modern periodic table. Also, he weighed atoms using relative weights. --Eric
John Dalton was born in England Sebtember 6, 1766. Dalton was the first person to study color blindness.
He also believed that all atoms of a certain element were exactly the same. This would mean that there
would be no such thing as ions or isotopes. --Eyad
John Dalton (1766-1844) was a leading English chemist, physicist, and meteorologist. He
extensively researched color blindness and hypothesized that a shortage in color perception was caused by
discoloration of the liquid in the eyeball. Of course, Dalton is also known for his atomic theory and view
on atomic weights. --Gennelle
John Dalton(1766-1844) was an English chemist. He developed modern atomic theory, created symbols
for elements, and developed relative weights. He stated that elements consist of different atoms and that
chemical combination involves atoms of both definite and relative weights. Dalton’s discoveries
influenced several important discoveries in the future of chemistry.
Dalton’s Symbols for the Elements --Jaya
Dalton (1766-1844), an English chemist, meteorologist, and physicist, was best known for the atomic
theory. The theory consisted of five main points, critical to the understanding of matter, atoms, and
elements. He also researched color blindness. He discovered that it is caused by discoloration of a
pigment in the eyeball. --Julia
John Dalton (1766-1844) an English chemist who was known of his research into color blindness and the
development of modern atomic theory. He also started the idea of using symbols representing different
element, which modern day adopted the idea. He also named more than 50 elements. --Karen
John Dalton was an English chemist who lived from 1766 to 1844. In his lifetime, he studied color
blindness and developed the idea of molecules in proportions. His study of different atomic weights
disproved Boyle’s theory of a universal atom. --Katy
Daily 40 no. – 11 John Dalton
Dalton, an English chemist around the turn of the nineteenth century, contributed greatly to the
foundations of chemistry by developing an atomic theory that explained compounds and introduced the
conservation of matter principle, in addition to naming some of the elements and listing their relative
weights. --Madeline
John Dalton was an English chemist who lived from 1766-1844. He had developed the atomic theory and
the idea that atoms combine only a certain number of times. He had given each element a symbol and
knew that elements can be distinguished from one another by their weights. --Tatiana
English chemist John Dalton is known for the development of the atomic theory, which claims that matter
is made of small particles called atoms, instead of disproportionate particles. Dalton also wrote a series
of papers entitled the “Experimental Essays” that discussed various gases and its properties. --Tokunbo
John Dalton was an English scientist intrigued by his own condition that prevented him from
discriminating color (Daltonism). Dalton symbolized hydrogen, oxygen, nitrogen, carbon, sulfur, and
phosphorus on a table with their relative atomic weights. He altered the atomic theory to account for
chemical reactions yet failed to recognize isotopes. --Victoria
John Dalton, an Englishman, lived from September 6, 1766 to July 27, 1844, and published a table of
relative atomic weights with six elements. He also proposed that the structure of compounds can be
defined in whole number ratios. Also, he proposed his own atomic theory. --Yulan