This phase of matter has a definite volume, but takes the shape of whatever container it is in.
What is a liquid?
100
These negative particles balance the positive protons in an atom.
What are electrons?
100
H2O
What is water?
200
C, atomic number 6.
What is carbon?
200
After 2,000 years, he revived Democritis's theory about atoms.
Who is John Dalton?
200
This phase of matter has particles moving so fast, they overcome the bonds that hold them together.
What is a gas?
200
The number of protons in an atom tells you this.
What is the atomic number?
200
CO2
What is Carbon Dioxide?
300
Li, atomic number 3.
What is lithium?
300
J.J. Thomson discovered electrons and called his model of the atom after this tasty treat.
What is plum pudding.
300
The point at which a liquid becomes a solid.
What is the freezing point?
300
Protons and neutrons (and most of the mass) can be found in this part of the atom.
What is the nucleus?
300
CO
What is Carbon Monoxide?
400
Ti, atomic number 22.
What is titanium?
400
Rutherford disproved the plum pudding model and discovered that most of the atom was empty space by shooting alpha particles at this type of thin foil.
What is gold?
400
Dry ice turning from a solid to a gas without passing through a liquid phase is an example of this.
What is sublimation?
400
It is how big the nucleus of an atom would be if the atom were the size of a football field.
What is a pea?
400
H2O2
What is Hydrogen Peroxide?
500
Au, atomic number 79.
What is gold?
500
He discovered that electrons traveled in distinct energy levels a fixed distances from the nucleus and created the most common model of the atom.
Who is Neils Bohr?
500
Solids can be either this or amorphous.
What is crystalline?
500
602 billion trillion water molecules would fit in this.