What are the most common 3 states of matter on Earth?
100
Physical Properties
Any properties of matter which can be perceived or observed without changing the chemical identity of the sample are called?
100
Scientific Hypothesis
What is an educated guess, based on observation?
200
Increase
On the periodic table if if the atomic radius is going down does it increase or decrease?
200
False
True or False? A valence electron is an neutron that is the most likely to be involved in a chemical reaction?
200
Gas
Which state of matter has complete freedom of motion?
200
False
True or False? Physical properties are any of the properties of matter that may only be observed and measured by performing a chemical change or chemical reaction.
200
Scientific theory
What summarizes a hypothesis or group of hypotheses that have been supported with repeated testing?
300
Increasing
On the periodic table if the ionization potential is going to the right is it increasing or decreasing?
300
The Greek word atomos
Where does the word atom come from?
300
Solids
What phase of matter does not flow easily?
300
Physical
Color and shape are examples of what property?
300
2
How many requirements does a scientific hypothesis have?
400
Group 17
What is the most reactive group of non metals on the periodic table?
400
Around the nucleus
Where do electrons orbit?
400
Liquids and Solids
Which states of matter are not easily compressible?
400
Physical
Is crushing a can a physical or chemical change?
400
True
True or False? Scientific hypotheses have to be testable
500
Group 18
On the periodic table in what group are the noble gases located?
500
EVERYWHERE!
Where are atoms located?
500
Liquids
What state of matter is close together with no regular arrangement?
500
Chemical
Is the rusting of iron a chemical or physical change?
500
True
True or false? A theory is valid as long as there is no evidence to dispute it.