Atomic Structure

What do we call the smallest unit

of matter?

AKA this thing

Atom

2 Parts

Subatomic
Particles

Subatomic

Particle

Proton

Electrical Charge

Electrical
Charge

Word Bank

Nucleus

Electron
Cloud

Positive

Negative

Neutral

Neutron

Electron

Read the article
then fill in the

graphic

organizer using
what you read.

Subatomic
Particles

Electrical charge

Mass

Protons

Electrons

Neutrons

Location

Atomic Structure

Proton

● Identifies the element

● A Positive charge

● Located INSIDE THE

NUCLEUS

● HAS A MASS OF 1 AMU

Atomic Structure

Neutron

● Has NO charge

● Located INSIDE THE

NUCLEUS

● HAS A MASS OF 1 AMU

Atomic Structure

Electron

● Has Negative charge

● Located in the ELECTRON

CLOUD (outside the
nucleus)

● HAS A MASS OF 0 AMU

There are 2 main parts of an atom.

The center

which is

called the…?

Hint: It’s the
same as what
we call this
middle part of
the cell.

There are 2 main parts of an atom.

Nucleus

Hint: It’s the
same as what
we call this
middle part of
the cell.

Atomic Structure

Nucleus

center

protons

neutrons

positive

protons

protons

neutrons

Atomic Structure

Nucleus

energy

levels

electrons

negative

protons

neutrons

electrons

Electron
Cloud
(energy
levels)

electrons

nucleus

What is an atom made of ?

Subatomic Particles

There are three subatomic particles
They spell out PEN

1. Protons
2. Electrons
3. Neutrons