Identify how elements are arranged on the Periodic Table.

OOxygen

15.99 atu

8• How many particles in the nucleus? ____

• Protons? _____

• Neutrons? _____

• Electrons? _____

Now draw an Oxygen atom (on your own notebook paper)!!

+ n

n

n

nnn

n n

+

+

++

+

++

OXYGEN ATOM

-

- -

-

-

-

-

-

Use the following information to draw a sodium atom…

NaSodium

22.9 atu

11= 11 protons

= 11 electrons

= 23 – 11 = 12 neutrons

N+

SODIUM ATOM

+

+ ++

++

+

+

+

+

+

NN

NN

NNN N

N

N

N

N

Al

aluminum

13

26.9 atu

=protons

= electronsRound off and subtract atomic mass from it

27-13 = 14 neutrons

Use the following information to draw a aluminum atom…

AlAluminum

26.9 atu

13

+

+ ++

++

+

+

+

+

+

NN

NN

NNN N

N

N

N

NNN

protons = 13

electrons = 13

neutrons = 14

Holds up to 8

Holds up to 8

Holds up to 2

The Musical Table Of Elements

http://www.privatehand.com/flash/elements.html

http://www.youtube.com/watch?v=zUDDiWtFtEM&safe=active

Discovery Education Videos

• Subatomic Particles• The Structure & Scale of the

Atom

Practice

The Atoms Family Atomic Math Challenge worksheet

(FRONT ONLY)

Build Atoms Yourself

at your computer.

Click “Next”

click “Next”

click “Skip”

click “Skip Into”

Read directions & click “Next”

Click Here

HOMEWORK

The Atoms Family Atomic Math Challenge worksheet

(BACK – to be graded)

Website

Click the link below & choose RUN IN HTML5

•You can choose any of 3 choices

http://phet.colorado.edu/en/simulation/build-an-atom

WebsiteClick the link below & then click LAUNCH

http://www.pbslearningmedia.org/resource/lsps07.sci.phys.matter.theatom/the-atom/

Now try this more challenging website & click on ATOM BUILDER ACTIVITY

http://www.pbs.org/wgbh/aso/tryit/atom/#

**Hint: Use “The Atom Builder Guide”

links at bottom of page for help