Intro to the Periodic Table & Atomic Structure

• THINK ABOUT IT – answer on your warm-up sheet or scratch paper

1. What are the 3 main groups on the periodic table?

2. What are the 3 main parts of an atom?

You need to get 3 different color pencils!!

Metals, Nonmetals, Metalloids

APE MAN!!!!

Atomic Number

=Number of Protons Mass Number

=Number of Electrons - Atomic Number

= Number of Neutrons

F9

18.9984

Let’s Practice…

Element Name Symbol Atomic

#Mass

## of

Protons# of

Neutrons# of

Electrons

Chlorine Cl 17 35.45

Argon Ar 39.95 22

ATOM

Atomic Structure

Nucleus

+ Proton +

+

Neutrons

0

ORBITALS

ORBITALS

- Electrons -

Subatomic Particles

Atomic Model Practice

• Practice drawing the following Atoms:–Hydrogen–Carbon –Phosphorous

1

H1.0079 6

C12.011

15

P30.973

Atomic Mass/Atomic # Practice

• Go to website –work on Atomic Mass/Atomic #

Practice (under The Atom page in the 1st 6-weeks)