History of the Atom PowerPoint Notes.docx - Period Name E.O 2 Atomic Structure Theory 1 Basic Make-up of an Atom a Atom the particle of matter that

History of the Atom PowerPoint Notes.docx - Period Name E.O...

This preview shows page 1 - 2 out of 2 pages.

Period______ Name______________________________________________ E.O. 2: Atomic Structure & Theory 1. Basic Make-up of an Atom a. Atom - the _______________________ particle of matter that retains the chemical identity of the matter. b. ________________(+)- a positively charged subatomic particle in the _________________. c. Neutron (0)- A ______________ charged subatomic particle in the _________________. d. Electron (__) - A negatively charged subatomic particle surrounding the nucleus in an outer _____ or sea. 2. History of the Atom a. Greek model i. Philosopher Democritus thought there was a limit to how many times you could cut something; until you came to the smallest piece possible. He called this smallest particle " Atomos ", meaning __________________ or indivisible. ii. Aristotle disagreed saying that matter was made of 4 elements: Earth, Air, Fire, and Water. He was wrong, but his theory persisted for 2000 years. b. Dalton's Atomic Theory ("Billiard Ball" model) i. Atoms are very small, hard, smooth ______________. ii. 4 parts to his theory: 1. All elements are made of _____________ and these atoms are indivisible. 2. All atoms of the same element are _____________ alike and have the same ________.
Image of page 1
Image of page 2

You've reached the end of your free preview.

Want to read both pages?

  • Fall '19
  • Atom, Neutron, Electric charge, B. Dalton, E. Ernest Rutherford

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes