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Joseph Proust
Joseph grew up in France. He learned about chemistry from his father who worked in an apothecary. Later he taught Chemistry with a famous aeronaut before moving to Spain to continue teaching. He was soon forced back into France because of the war. -
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John Dalton
John Dalton is thought to be the founder of modern day chemistry. He was well educated for someone of his time, going to a school called Parish hall for primary school. He was a teacher and loved to study meteorology in addition to his research about the elements. -
Period: to
Amedeo Avogadro
Before he was a scientist, Amedeo studied to become a lawyer as his father had before him. He soon discovered that he had a much greater love for science and switched careers. He became a teacher and was liked by his students. He is said to have liked to read and kept many Journals. He had six sons. -
Constant Composition
Joseph Proust first proposed th law of Constant Composition in 1799. This law states that "The proportion of elements within a copound is always equal." This law was later nick-named the Proust law.
Picture-
Example of law - http://quantumfreak.com/wp-content/uploads/2008/10/carbon-dioxide-and-monoxide.jpg -
Atomic Theory
John explored the atomic theory. He helped gain an understanding of the nature of materials. Pic - http://cdn.dipity.com/uploads/events/661d5bb925e413769fe846784046dff3_1M.png -
Atomic Weights
John Dalton created the first chart about Atomic weights. Pic - http://cdn.dipity.com/uploads/events/2462b0e2c4d0d593e0039d06a7ad1ffb_1M.png -
Avogadro's law
Amedeo came up with a law that states. "equal volumes of gases at the same temperature and pressure contain the same number of molecules regardless of their chemical nature and physical properties" Avogadro- http://media-1.web.britannica.com/eb-media/19/8419-004-32E3EEAE.jpg -
Period: to
Dmitri Mendeleev
Dimitri was the youngest of fourteen children. He lived in Siberia with his family for most of his life. When his father died, his mother was left to take care of the family. With only one person bringing in money for so many people, opportunities were limited for him. He still managed to go to college at Rupretcht Karl University of Heidelberg and Saint Petersburg state University. In 1882 he married Anna Popva. -
Period: to
JJ Thomson
JJ Thomson was born on December 18, 1856. He got married in 1890 to his wife, Rose Pagent. Together they had a son who was named George Pagent Thomson and a daughter who they named Joan Pagent Thomson. While his son chose to follow in his father's footsteps, his daughter went with her father in his travels J.J. Thomson died in 1940 at a ripe age of 84 years old. -
Period: to
Marie Curie
Marie lost her oldest sister when she was eight and her mother soon after. These unfortunate deaths brought Marie, her father and her remaining three siblings grow very strong and close relationships with each other. She was always the star of her class even when she was young. After graduating, she wanted to get a medical degree but woman were not allowed to enroll. Instead she set her sights on a science and math degree. Eventually she found her future husband, Pierre. She died from Leukemia. -
Periodic table
Dmitri Mendeleev created the periodic table. Though he had been working on it for quite a while, it was first published in 1869. He had organised the elements by using their atomic weights and grouping elements with similar properties together. Mendeleev's periodic table - http://www.msnucleus.org/membership/html/jh/physical/periodictable/images/MendeleevPeriodic.gif -
Period: to
Ernest Rutherford
Born a farmer’s son from New Zealand, Ernest Rutherford would become a great scientist. He earned a scholarship to Canterbury College, University of New Zealand. He ears various Degrees before moving to England to study at Cambridge. There he met his mentor, JJ Thomson. In 1900 he married Mary Georgina Newton and later had a single daughter. -
Period: to
Hans Geiger
Hans was born in Germany. He studied Physics at two separate universities before taking a job at Manchester University. He worked here with Ernest Rutherford for a total of five years before returning to Germany. There he continued to work and research at various universities until his death. -
Period: to
Niels Bohr
Niels Bohr came from a wealthy family. He was the middle child with two siblings. He always seemed to have a love of science; it was one of the subjects he was gifted at as a boy. He was also interested in sports and enjoyed playing with his brother. He graduated from the University of Copenhagen and went to Grammelholm Grammar school later on in life. -
Discovery of Electrons
JJ thomson discovered the electron. pic - http://www.english-online.at/science/electricity/nucleus-and-electrons.gif -
Is it possible?
Marie Curie discovers the possible existance of Two more elements in her research Picture of Radium- http://www.chemicalelements.com/bohr/b0088.gif -
Period: to
Enrico Fermi
Enrico Fermi lived from 1901-1954. He grew up in Rome, Italy as the youngest of three siblings. When he was 24 he started teaching and became a professor. He married Laura Fermi. He immigrated to the US in 1939 because his wife was Jewish and they were fearful due to WW2. -
Pure state
Marie Curie discovered plotonium and Radium in its pure state Pic of Plotonium - http://www.chemicalelements.com/bohr/b0094.gif -
Plum-Pudding model
He suggested a model of the atom called the plum-pudding model. Pic - http://www.astarmathsandphysics.com/ib_physics_notes/atomic_and_nuclear_physics/ib_physics_notes_the_geiger_marsden_alpha_particle_scattering_experiment_html_mbcc2997.gif -
Nuclear structure
in 1911 Ernest Rutherford discover the nuclear structure of the atom. While conducting his research he also found that atoms are not always stable. Pic - http://www.lbl.gov/abc/graphics/STRUCTURE.GIF -
Geiger counter
Hans Geiger researched and discovered that alpha particles can go through atoms. Though he found that the experiment was hard to do because he couldn't keep track of how many alpha particles had been released. As a solution he created the 'Geiger counter', a machine that counted released alpha particles. Pic - http://wiki.chemprime.chemeddl.org/images/f/f0/Geiger.png -
Theories
Niels won a Nobell prize for his theories on the atomic stucture and radiation emitions. Pic - http://cnx.org/content/m42554/latest/Figure%2030_01_01a.jpg -
Splitting atoms
In 1934 Enrico Fermi did an experiment that would help create one of the most lethal weapons of today. The atomic Bomb. His experiment used neutrons as projectiles to split atoms. This allowed scientists to harness nuclear energy thus creating the atomic bomb. Pic - http://www.bbc.co.uk/schools/gcsebitesize/science/images/ph_radio05_v2.gif
