Matter
Three states of matter
What is a solid, liquid, and gas?
A physical blend of two or more components
What is a mixture?
The simplest form of matter that has a unique set of properties
What is an element?
The smallest particle of an element that retains its identity in a chemical reaction
What is an atom?
Protons, electrons, and neutrons are all this kind of particle
What is a subatomic particle?
Matter that has a uniform and definite composition
What is a substance?
A mixture in which the composition is not uniform throughout
What is a heterogeneous mixture?
A change that produces matter with a different composition than the original matter
What is a chemical change?
This philosopher believed that atoms were indivisible and indestructible
Who is Democritus?
This is what you find when you subtract the Atomic number from the Mass number
What is neutrons?
A property that depends on the amount of matter in a sample
What is an extensive property?
Stainless steel and air are examples of this type of mixture
What is a homogeneous mixture?
Words such as burn, rot, rust, decompose, ferment, explode, and corrode signify this type of change
What is a chemical change?
This person used a cathode-ray tube to find electrons
Who is J.J. Thompson?
This is the atomic number of Titanium
What is 22?
Words such as boil, freeze, melt, and condense describe this type of change
What is a physical change?
The process by which a solid is separated from a liquid in a heterogeneous mixture
A substance present at the start of a reaction is called this
What is a reactant?
This scientist created a theory out of Democritus's ideas with four main points
Who was John Dalton?
This is how many neutrons are in Oxygen
A property that depends on the type of matter in a sample, not the amount of matter
What is an Intensive property?
What is distillation?
Due to this law, the mass of the products will always equal the mass of the reactants
What was the Gold-Foil Experiment?
Lithium, Beryllium, Boron, and Carbon are all located in the same row which is also called this
What is a period?