protons, neutrons, and electrons

ATOMIC STRUCTURE

●

MATTER is anything that has mass and takes up

●

ATOMS are the building blocks of matter.

●

Atoms make up ELEMENTS. Elements are made up of only one
kind of atom.

There are 118 different kinds of Elements on the Periodic Table.
Different Combinations of these 118 elements make up all of the materials we have on earth.

Multiple Choice

Anything that has mass and takes up space is called

• atom

• element

• matter

• mass

● Atoms are made of SUBATOMIC PARTICLES.

Electrons are in the electron cloud.

Protons and
Neutrons are in the Nucleus.

Remember the reasons we used the Colors.

You have to know the LOCATION, SIZE, and CHARGE of all three subatomic particles.

NEUTRON:

Location: Inside the Nucleus
Size: 1 amu (atomic mass unit)
Charge: Neutral–no charge (0)

PROTON:

Location: Inside the Nucleus
Size: 1 amu (atomic mass unit)
Charge: Positive (+)

ELECTRON:

Location: Electron Cloud–orbiting nucleus
Size: 1/1,836 amu (atomic mass unit)
Charge: Negative (-)

Multiple Choice

What type of subatomic particle has a positive charge?

• proton

• neutron

• electron

Multiple Choice

What type of subatomic particle has a negative charge?

• proton

• neutron

• electron

Multiple Choice

What type of subatomic particle has a neutral charge?

• proton

• neutron

• electron

​Subtract the Atomic Number from the Rounded Atomic Mass.

​Round the Atomic Mass (decimal number) to the nearest whole number.

How do you know how to find the neutrons in an atom?