the structure of the atom. atomic number atomic mass element symbol element name

THE STRUCTURE OF THE ATOM

Atomic Number

Atom

ic M

ass

Element Symbol

Element Name

The protons live in the nucleus.

Atomic # = # of protonsP+

No

e-

The neutrons also live in the nucleus.

Atomic mass - # of protons = # of neutrons

The electrons live outside the nucleus.

# of protons = # of electrons

P+No

e-

Nucleus

Electron Cloud

USE THIS INFORMATION TO CREATE A MODEL FOR THE CARBON ATOM

atomic # = # of protons

atomic mass - # of protons = # of neutrons

# of protons = # of electrons

THINK OF EACH RING AS A HIGHWAY…ONLY SO MANY CAN FIT ON EACH ROAD

CHECK YOUR WORK!

SKETCH OUT THE ATOM

Draw a sketch of the carbon atom in your packet. Be sure to label your protons like this

Be sure to label your neutrons like this

Be sure to label your electrons like this

P+

No

e-

LET’S REVIEW

Before we get started, can you tell me

The number of protons? The number of neutrons? The number of electrons?

APEAtomic Number =

# of protons# of electrons

Protons:Neutrons:Electrons:

3

Protonsare the

Atomic Number

Atomic Number

Protons:Neutrons:Electrons:

3Ato

mic Mass

Neutrons734

4

Atomic Number

Protons:Neutrons:Electrons:

3Ato

mic Mass

APEAtomic Number

= # protons

# of electrons

43