Show:
Atomic Structure
Periodic Table
Physical/
Chemical Properties
Law of
Conservation of
Matter
Why does it matter?
100
Where are the electrons found in an atom?
In electron shells/clouds/rings on the outside of the nucleus.
100
How are elements arrange in the periodic table?
The elements are arrange in order of atomic number or number of protons.
100
What is the difference between a chemical and a physical change?
A physical change can be reversed and a chemical change cannot be reversed easily.
100
What is the simplest unit of matter?
An atom
100
What happens to the molecules of water when they change from a liquid state to a solid state?
The molecules of water slow down when it goes through a phase change from a liquid to a solid.
200
What are the three subatomic particle (small particles) that make up an atom?
Protons and Neutrons make up the nucleus of the atom and the electrons are found outside the nucleus.
200
What is the difference between a group and a period?
Groups form vertical columns and periods are horizontal rows.
200
What are three signs of a chemical change?
Color change, Formation of a gas, Temperature change, and Formation of a precipitate
200
If 20 grams of oxygen react with 45 grams of iron. How much iron oxide will be produced? 

65 grams

200
A bowl of chocolate M&M's is an example of what type of mixture?
Heterogeneous Mixture
300
How many protons are found in the element Tin? 

50

300
What is the most reactive group of nonmetals?
The Halogens
300
Which type of change produces new substances and cannot be reveresed? 

Chemical 

300

Mixtures are formed by which kind of bonds? 

physical 

300
Sugar dissolved into water is a special kind of homogeneous mixture called a ________________. 

Solution

400
What subatomic particle do we use to identify an atom?
Protons
400
Why are the Noble Gases considered stable?
Each element in the Noble gases has a full outer electron shell or have at least 8 valence electrons.
400
What are three physical properties of a metal?
Conductivity, Malleability, Magnetism, and Luster
400

What kind of bond is formed when Na and Cl bond together to create table salt?

Compound

400
What types of matter are considered pure substances? 

compounds and elements

500

How many neutrons are found in the element Zirconium? 

51

500

Which element is most reactive? K, Ca, He, Ag? 

K - Potassium 

500
Do physical changes produce compounds or mixtures?
Mixture
500

What are two facts that will always be true about the reactants and the products of a chemical reaction that takes place in a closed space?

The number of atoms in the reactants and the number of atoms in the products are the equal. The mass of the reactants and the mass of the products are equal.

500

Which law states that matter can never be created or destroyed? 

The Law of Conservation of Mass