history of the periodic table and atoms by Evie Flynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s en-us 2022-10-14 08:09:02 UTC 2022-10-23 21:51:34 UTC hello@padlet.com evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340062209 John dalton made his discovery of the atom in 1803 .When experiments with gases became possible in the turn of the nineteenth century it led John to propose a modern theory of the atom based on the following assumption.1.matter is made up of atoms that are indivisible and indestructible.]]> 2022-10-14 08:36:18 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340062209 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340062969 2022-10-14 08:37:04 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340062969 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340063799 2022-10-14 08:37:48 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340063799 What did William Crookes discover? margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340081595 William Crookes is renowned today for discovering thaillium.He is today reconigised as one of the great scienctists of the Victorian era.He accidentally found the toxic heavy metal by burning the dust from a sulfric acid industrial plant.He named the new element 'thaillium' after thallos meaning young shoot.]]> 2022-10-14 08:50:28 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340081595 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340083256 2022-10-14 08:51:36 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340083256 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340084842 JjThomson announced his discovery that atoms were made up of smaller components on april 30 1897.He first investigated the magnetic deflection of cathode rays.]]> 2022-10-14 08:52:58 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340084842 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340094590 2022-10-14 09:01:37 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340094590 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340096447 2022-10-14 09:03:18 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340096447 Fun Facts about William! margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340099426 1. He won the nobel peace prise for chemistry in 1907.
2. He was fasinated by spiritualism and often tried to find ghosts.
3. He was aged 87 when he died.
4. His brother died aged 21 from yellow fever.]]> 2022-10-14 09:06:24 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340099426 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340100181 2022-10-14 09:07:08 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2340100181 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2341274097 Ernest rutherford made his discovery of the atom in 1911.He discovered the nucleus of the atom.He discovered that radioactive prepertions gave rise to formation of gases.His model proposed that the negatively charged electrons surround the nucleus of the atom.He discovered alpha and beta rays and proposed the law of radioactive decay.He won the nobel peace prize for chemistry in 1908.]]> 2022-10-15 11:15:37 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2341274097 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2341274716 2022-10-15 11:17:02 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2341274716 Doberiener was a German scientist that is known for making vinegar, but he is best known for directing attention to the fact that the atomic weight of strontium is the mean of those of calcium and barium. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350357394 2022-10-21 08:15:04 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350357394 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350359197 2022-10-21 08:16:54 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350359197 Mendeelev was a Russian scientist created the symbols for the chemical elements,putting them in order according to their atomic weights and he invented the periodic table. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350364887 2022-10-21 08:22:39 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350364887 john was the first to arrange the elements into a periodic table with increasing order of atomic masses.He discovered that every 8 elements had similarities and called this the law of octaves.Newlands discovered 56 elements. evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350365167 2022-10-21 08:22:57 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350365167 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350365554 2022-10-21 08:23:19 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350365554 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350365820 2022-10-21 08:23:32 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350365820 When creating the periodic table he left gaps for elements that were yet to be discovered margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350368281 2022-10-21 08:26:05 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350368281 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350369445 2022-10-21 08:27:06 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350369445 Chadwick discovered and proved that the existence of neutrons. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350377378 2022-10-21 08:34:38 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350377378 He studied at the University of Manchester. He worked under Ernest Rutherford and earned a master's degree in 1913 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350380725 2022-10-21 08:37:41 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350380725 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350381006 2022-10-21 08:37:56 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350381006 During World War 1 broke out, he was imprisoned in a camp for civilians at Ruhleben. He spent the entire war there. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350384892 2022-10-21 08:41:41 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350384892 His famous oil drop experiment measured the fundamental unit of electric charge.He was a professer in the university of chicago.He died 19th december 1953.He discovered elementary charge.He won 5 awards.Education in columbia. evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350385214 2022-10-21 08:42:02 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350385214 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350385792 2022-10-21 08:42:36 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350385792 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350386046 2022-10-21 08:42:53 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350386046 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350387844 2022-10-21 08:44:43 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350387844 Boyle was a 17th century chemist, philosopher and writer. He discovered that the volume of a gas decreases with increasing pressure and vice versa. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350393622 2022-10-21 08:49:53 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350393622 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350394607 2022-10-21 08:50:42 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2350394607 Mosely was an English physicist and he invented X-ray spectrum analysis. He was also the first man who proved that every chemical element is determined by the number of protons it has rather than by its mass. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352566690 2022-10-23 19:55:07 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352566690 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352567027 2022-10-23 19:55:41 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352567027 Sir Humphry Davy was an English chemist. Davy discovered potassium. In 1808 he isolated the elements sodium, barium, strontium, calcium, and magnesium. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352570016 2022-10-23 20:00:15 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352570016 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352572346 2022-10-23 20:04:10 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352572346 He is also supposedly to have been the first to discover clathrate hydrates in his lab. margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352572865 2022-10-23 20:05:01 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352572865 margaretgosti https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352574652 2022-10-23 20:07:55 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352574652 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352628676 On january 26th 1939 during the Fifth Washington Conference on Theoretical Physics at the George Washington University, Nobel Laureate Niels Bohr publicly announced the splitting of the uranium atom.Niels Bohr used information from Ernest Rutherford's description of the nucleus of the atom and Max Planck's theory of quantum theory. Bohr then discovered his idea of the atom's structure and how electrons travel in specific orbits.]]> 2022-10-23 21:47:30 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352628676 evieflynn1 https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352629006 2022-10-23 21:48:06 UTC https://padlet.com/evieflynn1/1ql0mq75wylvky3s/wish/2352629006