Atoms
Elements
Molecules
Compounds
Mystery
100

What are positively or negatively charged atoms called

What is an ion?

100

A chart used by scientists to list all the elements

What is the periodic table?

100

Two hydrogen atoms and one oxygen atom make up one molecule of this.

What is one molecule of water?

100

The chemical formula for table salt.

What is NaCl?

100

Salt water is an example of this.

What is a mixture?

200

Particle with a neutral charge in an atom.

What is a neutron?

200

K is the chemical symbol for this element.

What is Potassium?

200

The number of sodium atoms in table salt. 

What is 1 sodium atom?

200

The chemical symbol for Methane

What is CH4?

200

How many Chlorine atoms can bond with aluminum?

3 Chlorine atoms

300

The small, dense region in the center of an atom that makes up the majority of an atoms mass

What is the nucleus?

300

A substance that cannot be broken down into a smaller substance as it is only made of one thing.

What is an element?

300

All matter in the universe can be described as this.

What is atoms or molecules?

300

The 2 in the chemical formula H2O means this.

What is two atoms of hydrogen?

300

The term used to describe the point at which a solid becomes a liquid.

What is the melting point?

400

What is the name of an atom with a positive charge?

What is a cation?

400

The number of Carbon atoms in a molecule of CH3COO

What is two?

400

The definition of a molecule.

What is a particle that contains more than one atom joined together?

400

The chemical formula for carbon dioxide.

What is CO2?

400

What kind mixture is made of components that aren't uniform or they have localized regions that all have different properties. Hint: Pizza

What is a Heterogeneous Mixture?

500

The number of protons an oxygen atom has.

What is 8 protons?

500

The element with atomic number 20.

What is calcium?

500

The number of chlorine atoms in carbon tetrachloride.

What is 4?

500

The definition of a compound.

What is two or more different atoms chemically bonded together?

500

Draw the Lewis Dot Structure for PCL3

Correct