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1 ©2012 Micron Foundation, Inc. |
Atoms and Molecules
Micron Foundation
K-12 Program
August 18, 2015
2 ©2012 Micron Foundation, Inc. |
What is Everything made of?
August 18, 2015
Atoms
Molecules
and
3 3 ©2012 Micron Foundation, Inc. |
Democritus
August 18, 2015
Democritus, 460 – 370 B.C.
“Atom” means “uncuttable”
4 ©2012 Micron Foundation, Inc. |
Atom Models
August 18, 2015
Bohr (planetary) model of the atom 3-D model of an atom
Electrons
Neutrons
Protons
Nucleus
+ +
+ +
-
-
5 5 ©2012 Micron Foundation, Inc. |
August 18, 2015
6 6 ©2012 Micron Foundation, Inc. |
Sodium
August 18, 2015
Number of Protons = Number of Electrons = 11
Atomic Mass – Atomic Number = Number of Neutrons
23 - 11 = 12
11
Na
Sodium
22.99 (23)
11
Na
Sodium
22.99 (23)
Atomic Number
Atomic Symbol
Name
Atomic Mass
Atomic Number = Number of Protons = 11
7 7 ©2012 Micron Foundation, Inc. |
Atoms – Molecules - Matter
August 18, 2015
Atoms
Molecules
Matter
8 8 ©2012 Micron Foundation, Inc. |
Single Element Molecules
August 18, 2015
Some molecules are made up of atoms of the same element
H2
Hydrogen O2
Oxygen
N2
Nitrogen
9 9 ©2012 Micron Foundation, Inc. |
Compounds
Molecules made up of two or more elements are called Compounds
August 18, 2015
H2O Water
NaCl Sodium Chloride
CH4
Methane
CO2
Carbon Dioxide NH3
Ammonia
10 10 ©2012 Micron Foundation, Inc. |
Activity Stations
August 18, 2015
Atoms
Molecules
11 11 ©2012 Micron Foundation, Inc. |
Ions & Isotopes
August 18, 2015
Ions Atoms with “missing” or “extra”
electrons.
Isotopes Variants of an element with a different
number of neutrons.
Li
Lithium atom
3 protons
4 neutrons
3 electrons
Li+ Lithium ion
3 protons
4 neutrons
2 electrons
Be
Beryllium atom
4 protons
5 neutrons
4 electrons
Be10
Beryllium isotope
4 protons
6 neutrons
4 electrons
12 12 ©2012 Micron Foundation, Inc. |
Periodic Table – Periods
August 18, 2015
1
2
3
4
5
6
7
Pe
rio
ds
13 13 ©2012 Micron Foundation, Inc. |
Orbital Shells & Periods
August 18, 2015
14 14 ©2012 Micron Foundation, Inc. |
Periodic Table – Groups
August 18, 2015
Pe
rio
ds
1
2
3
4
5
6
7
aI
aII III IV V VI VII
VIII
15 15 ©2012 Micron Foundation, Inc. |
Valence Electrons
August 18, 2015
16 16 ©2012 Micron Foundation, Inc. |
Cool Videos
“A Boy and His Atom” World’s Smallest Movie + Making of the Video
https://www.youtube.com/watch?v=LBpu4OPw6bM
Music Videos about Elements
Meet the Elements: https://www.youtube.com/watch?v=Uy0m7jnyv6U
Elements Song with Periodic Table:
http://www.youtube.com/watch?v=zGM-wSKFBpo&feature=related
Picture of an Electron
http://www.youtube.com/watch?v=ofp-OHIq6Wo&feature=related
Picture of Hydrogen Atom
https://www.youtube.com/watch?v=4G7sq5GVhos
August 18, 2015
