These are the two requirements for something to be classified as matter.
What are mass and volume?
100
This Russian chemist is credited with creating the Periodic Table.
Who is Dmitri Mendeleev?
100
The smallest particle an element can be divided into.
What is an atom?
100
This is what undergoes the change in a reaction.
What is the reactant?
100
It is how matter transforms from gas to solid
What is deposition?
200
Turning water into hydrogen and oxygen via electrolysis is this kind of change.
What is chemical?
200
The rows in the periodic table are called this.
What are periods?
200
These hold atoms together.
What are chemical bonds?
200
A chemical formula describes this.
What is the elements used in a process?
200
The coldest state of matter.
What is solid?
300
This is measured in grams per centimeter cubed.
What is density?
300
Elements 89-103 are in this series.
What is the Actinide Series?
300
The number of protons and electrons in an atom are both equal to this number.
What is the Atomic Number
300
Chemical reactions never produce compounds with elements not found in the ______. Instead they can only rearrange the original elements to form new compounds.
What is the reactant?
300
This state's atoms stay in the same formation no matter what.
What is solid?
400
This is a combination of a solid and a liquid.
What is a suspension?
400
Dmitri Mendeleev created the periodic table based on this.
What is the weight of certain elements?
400
This type of chemical bond transfers electron(s) from one atom to another.
What is ionic?
400
A chemical reaction takes place when one or more substances change(s) to form one or more new ________.
What are substance(s)?
400
This is the fourth state of matter
What is plasma?
500
A person who studies matter is called this.
What is a chemist?
500
Fluorine is in this group, often called the ____.
What is Halogens?
500
The atomic number is often half of this number on the periodic table.
What is atomic weight?
500
According to this law, chemical equations must be balanced.
What is the law of conservation of mass?
500
This is the only place where humans can see plasma