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Intro to Chemistry

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Title: Intro to Chemistry Author: Mitch Arsenie Last modified by: Mitch Arsenie Created Date: 10/4/2009 7:38:14 PM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Title: Intro to Chemistry


1
Bellringer Wed, 10/06
  • Please fill in the following missing letters in
    the pattern below
  • O T T F _ _ S
  • U D T C _ _ S
  • Reminders LAB FEE NOW! HW 5 due Fri!

F
S
One Two Three Four Five Six
Seven
C
S
Uno Dos Tres Cuatro Cinco Seis
Siete
4 Minutes
1 Minute
Times Up!
5
2
1
3 Minutes
30 Seconds
2 Minutes
10
9
8
7
6
4
3
2
Brief Intro to Chemistry
3
What is everything made of?
  • Everything is made of matter
  • Matter is found as elements
  • Elements are organized on the Periodic Table
  • They are made of atoms

4
(No Transcript)
5
What is an atom?
  • Smallest unit of matter!
  • Everything is made of atoms.

6
Parts of an atom
7
A happy atom must have
  • Number of p number of e-

8
What makes atoms different?
  • What makes an atom unique is the number of
    protons in nucleus
  • We know what element the atom is if we know the
    of p in nucleus
  • How do we know the number of protons? we look on
    the periodic table!

9
How to read element info!
Atomic Number (p)
Element Symbol
Mass Number (p n0)
Note n0 Mass Number - Atomic number
10
So what does it look like?
11
Atom Atom
  • Two or more atoms molecule
  • Element element compound
  • All compounds have a formula (like a recipe! H20,
    NaCl!
  • Mixture not chemically combined, can be
    separated (rice and corn)
  • Solution chemically combined, cannot separate
    physically (coffee, juice)
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