Periodic Table 1
Chemical Reactions
Physical properties
Chemical properties
Periodic Table 2
100

This is how heavy one atom of a specific element is.

What is atomic mass or atomic weight?

100

Every chemical reaction is either ______ or _______.

What are exothermic and endothermic?

100

I tell you how many molecules are in a substance.

What is mass?

100

How easy a substance interacts with another substance.

What is reactivity?

100

The number of protons in a single atom of an element.

What is the atomic number?

200

These elements have metallic and nonmetallic properties.

What are metalloids?

200

This type of reaction causes complex chemicals to separate into simpler chemicals.

What is a decomposition reaction?

200

I tell you how hard gravity pulls on a substance.

What is weight?

200

This is how easily a substance starts to burn.

What is combustibility?

200

This type of atom has an unusual number of electrons.

What is an ion?

300

We are the 'snobs' of the periodic table.

What are noble gasses?

300

This type of reaction combines simpler chemicals into more complex chemicals.

What is a synthesis reaction?

300

I tell you how well something floats in water.

What is buoyancy?

300

This is how easily a substance will continue to burn.

What is flammability?

300

I am the only metal that is a liquid at room temperature.

What is mercury?

400

This is the name for any vertical column on the periodic table.

What is a family?

400

This number tells you how many molecules are in a chemical formula.

What is the coefficient?

400

I tell you how tightly packed the molecules in a substance are.

What is density?

400

This is how easily an atom's nucleus breaks down over time.

What is radioactivity?

400

I am not an alkali metal, but I'm at the top of their column

What is hydrogen?

500

We are the two most reactive groups on the periodic table.

What are alkali metals and halogens?

500

This type of reaction can be single, double, or triple.

What is a replacement reaction?

500

I tell you how easy a substance is to be scratched.

What is hardness?

500

This is the correct name for rusting.

What is oxidation?

500

The number of periods on the periodic table.

What is seven?