chemisty atomic stuff

• the atomic model is used to describe the srructure and makeup of atom
• democritous?


  greek philosipher (470-380BC)
• DEMOCRITOUS- father of atomic thought
• who said " matter can not be divided into smaller pieces forever."?

  democritous
• "matter is made up of small hard particles called "atoms"?


  democritous
• john dalton (1808)
• who created the 1st atomic theory?

  john dalton
• true or false?


  john dalton was a science teacher
• dalton viewed atoms as?

  tiny solid balls
• j.j thompson?

  1897
• who discovered electrons?

  jj thompson
• jj thompson was the first to show atoms are made up of smaller things
• true or false?

  jj thompson discovered the existence p+
• true or false?


  this is the rasin bun model by jj thompson

  
• ernest rutherford (1911)
• what did ernest rutherford discover?

  p+ and the nucleus
• true or false?


  ernest found p+ in the nucleus
• who does this model belong to?


  ernest rutherford

  
• nieles bohr- 1913
• proposed e- moved around the nucleus in layers or shells?

  nieles bohr
• who proposed this model?


  bohr

  
• james chadwick- 1932
• who discovered neutrons?


  james chadwick
• james chadwick discovered particles with no charge
• true or false?

  neutrons are NOT found in the nucleus
• who discovered this model?

  james chadwick

  
• modern model- 1932
• the modern model has e- moving around the nucleus in a cloud