CHAOTIC CHEM LAB ESCAPE

ChaoticChem Lab

Escape room

start

You arrive at your third period classroom and are surprised to find no one there. When you go to the chem lab, you find a note and decide to read it...

Look at the note on the fridge

Experiment Steps

Modern Periodic Table

Students, I had to meet a parent unexpectedly. I have left you an experiment to learn about the elements of the periodic table. Follow all the steps.

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Click on the light fixture to open the Modern Periodic Table resource. Use that resource to answer the following 3 questions: What class of element is silicon (Si)?

metal

metalloid

lanthanide

nonmetal

Using the Modern Periodic Table resource, how many energy levels have electrons in them for atoms of silicon? Hint: What period is silicon in?

4A

14

Using the Modern Periodic Table resource, what group is silicon in?

14

4A

16

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Click on the light fixture to open the Metals resource. Use that resource to answer the following 3 questions: Most metals give up their extra electrons. What property of metals is related to this tendency?

Metals have relatively high melting points.

Metals tend to be malleable.

Most metals are good conductors of heat.

The majority of metals are ductile.

Using the Metals resource, what does it mean when metals are described as ductile?

Metals can be pulled into long, thin shapes like wires.

Metals are generally shiny.

Metals can be formed into thin sheets without breaking.

Metals are good conductors of heat.

Using the Metals resource, what does it mean when metals are described as malleable?

Metals can be formed into thin sheets without breaking.

Metals are solids at room temperature, except mercury.

Metals can be pulled into long, thin shapes like wires.

Metals reflect much of the light that strikes them.

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Click on the light fixture to open the Nonmetals resource. Use that resource to answer the following 3 questions: Which nonmetal is more reactive?

argon

sulfur

Refer to the Nonmetals resource. Nonmetals are on the right side of the periodical table and most hold onto their electrons. What does this indicate about nonmetals?

Nonmetals cannot conduct electricity and are insulators.

Nonmetals are solids at room temperature.

Nonmetals give up their electrons, allowing their electrons to flow freely.

Nonmetals are gases at room temperature

Refer to the Nonmetals resource. The number of electrons in the outer energy level determines the reactivity of nonmetals. What makes reactive nonmetals reactive?

They tend to gain electrons, making them poor conductors.

They tend to gain electrons, making them good conductors.

They tend to lose electrons, making them poor conductors.

They tend to lose electrons, making them good conductors.

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Click on the light fixture to open the Metalloids resource. Use that resource to answer the following 3 questions: Under what conditions can some metalloids conduct electricity?

when combined with metals

at higher temperatures

Use the Metalloids resource to answer this question: In what way are metalloids similar to metals?

They are all ductile.

They are shiny.

Use the Metalloids resource to answer this question: How metalloids behave in chemical interactions depends on what?

the number of electrons in the outer energy level

The boiling and melting point of the metalloid

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Click on the light fixture to open the Valence Electrons resource. Use that resource to answer the following 3 questions: What are valence electrons?

electrons in the outer energy level

electrons in the inner energy level

Refer to the Valence Electrons resource. Silicon and germanium are semiconductors. How many valence electrons do both of these elements have?

14

3 for silicon and 4 for germanium

Refer to the Valence Electrons resource. Under what conditions will elements like silicon and germanium conduct electricity?

when combined with a reactive nonmetal

at lower temperatures

at higher temperatures

when combined with a reactive metal

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Click on the light fixture to open the Groups with Metalloids resource. Use that resource to answer the following 3 questions: What group are germanium and silicon part of?

Oxygen Group (16)

Carbon group (14)

Use the Groups with Metalloids resource to answer this question: Germanium is used to make what that carry telephone and other communication signals?

fiber optic cables

computer chips

Use the Groups with Metalloids resource to answer this question: What element is often used to make solar panels because it conducts electricity when exposed to light?

tellurium

silicon

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Expand the accordion below this activity in the lesson to watch the video Lewis Dot Structures. Watch the first 2 minutes. You may watch the full video if you like. Use that video to answer the following 3 questions: What element is shown in the following Lewis Dot diagram?

sulfur

silicon

Expand the accordion below this activity in the lesson to watch the video Lewis Dot Structures. Watch the first 2 minutes. You may watch the full video if you like. Use that video to answer the following 3 questions: What element is shown in the following Lewis Dot diagram?

boron

bromine

Expand the accordion below this activity in the lesson to watch the video Lewis Dot Structures. Use that video to answer the following 3 questions: Antimony (Sb) has 5 valence electrons. How many covalent bonds will antimony need to form to complete its valence shell?

Experiment Steps

Modern Periodic Table

Metals

Nonmetals

Metalloids

Valence Electrons

Groups with Metalloids

Lewis Dot Structures

Congrats!

You have conquered the periodic table! You are ready to learn more about semiconductors!

starT over?

Wrong!

Oops! You dropped a beaker and scattered broken glass all over the chem lab. Try again!