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Agenda: 11/16 & 11/20

Warm-Up
INB Setup
Atomic Structure
Subatomic Particle Lab

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Think-Pair-Share

At your tables each pick one of the following bullet points to discuss:

What role does energy play in a phase change?

How does density change as phases change?

What happens to particles when a solid changes to a liquid?

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INB Setup

Turn to page 32 in your notebook and title it “In Living Color”

Turn to page 33 in your notebook and title it “Atomic Structure”

Above the title on page 33 write the following:

GQ: What is the structure of an atom?

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What is an atom?

An atom is the smallest unit of matter that makes up all substances.

All matter is made of atoms.
Atoms are extremely small.

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What makes up an atom?

An atom is made up of 3 charged subatomic particles:

Protons—have a positive (+) charge
Neutrons—have no (0) charge (think: neutral)
Electrons—have a negative (-) charge

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What is the structure of an atom?

The protons and neutrons are grouped together in the center of the atom.
The center of the atom is called the nucleus. (Positively charged.)
Electrons move around outside the nucleus in what we call an electron cloud.

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What is the charge of the electron cloud?

Electrons are much smaller than protons (2000 times smaller).
Electrons move around the nucleus very quickly in what is called an electron cloud.

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How do charged particles interact?

Particles with the same type of charge repel each other—they push away from each other.

Particles with different/opposite charges attract each other—they are drawn toward one another.

“Opposites attract”

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How do atoms stay together?

Atoms do not have a shell or anything else separating them from the rest of the world.

The negatively charged electrons are attracted to the positively charged protons.

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Overall Charge

When determining if the overall charge of an atom is positive, negative, or neutral:

Positive Ion: Protons > electrons
Negative Ion: Protons < electrons
Neutral: Protons = electrons

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In Living Color

On page 32 of your INB draw and label an image of an atom.

Label electrons, protons, neutrons, the electron cloud, and the nucleus.

Assign the correct charge to the subatomic particles.

Color code your subatomic particles.

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Atomic Structure Particle Lab

With a partner we will walk through a lab that will illustrate the relationship between protons and electrons.

Materials:

Lab packet

Plastic grocery bag

Balloon (you will receive this after I check your progress)

Confetti