Phillosphers -> discoveries
Demorictrutus
" Atmos particles"
everything made of particles
can be recombined in new ways to form substances
400BC
artistone
said everything is made of 4 elements( fire, ice, air, earth)
350BC
Boyle
•expirmented with gases
•all matter is made of tiny particles
•chemistry should be focused on particles
• 1660 A.D
Dalton
•Billard ball modle
• All matter made of elements with unique masses
• 1808 A.D
Thomson
• Discovered a subomatic particle
• " The electron"( negativly charged)
•raison bun or chocolate chip cookie modle
•Electrons embeded in the Atom
1897
Ruthaford
•Discovered / named the nuclues
• solar system modle
1904
Bohr
Electrons orbit the nuclues circular
1992
chadwick
•suggested that positivly charged particles called protons and newtrons ( not charged) are what makes up the nuclues
•1992