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Elements
Mixtures
Physical and Chemical properties
Atomic Structure
Misc.
100
The most simple form of an atom.
What is an element?
100
A mixture that is uniform throughout.
What is an homogeneous mixture?
100
A substance that has a definite shape and a definite volume.
What is a solid?
100
A positively charged subatomic particle.
What is a proton?
100
The atomic number is equal to the number of these.
What is a proton?
200
The chemical symbol for Fluorine.
What is F?
200
A mixture that is not uniform throughout like a salad.
What is an heterogeneous mixture?
200
A substance that has NO definite shape and NO definite volume.
What is a gas?
200
He discovered that the nucleus was compacted, dense and positively charged.
Who is Ernest Rutherford?
200
The mass number is equal to this.
What is protons plus neutrons?
300
A substance that contains two or more elements chemically combined in a fixed proportions.
What is a compound?
300
Another name for a homogeneous mixture.
What is a solution?
300
This type of property can be observed without a change in composition.
What is a physical property?
300
A negatively charged subatomic particle.
What is an electron?
300
A positively charged ion.
What is a cation?
400
The chemical symbol for Iron.
What is Fe?
400
Homogenous mixtures such as water can only be separated by this mean.
What is chemically separated?
400
A substance with a definite volume and takes the shape of its container.
What is a liquid?
400
He discovered the electron with a cathode ray tube.
Who is JJ Thomson?
400
The number of significant digits in the number 0.0020020
What is five (5)?
500
A neutral group of atoms joined together by covalent bonds.
What is a molecule?
500
The process of separating a mixture based on different boiling points, "This is how we make the Moonshine."
What is distillation?
500
A change in composition, like burning a piece of paper.
What is a chemical change?
500
A subatomic particle that has no charge, discovered by James Chadwick.
What is a neutron?
500
The number of protons, neutrons, electrons and the charge on a Magnesium ion Mg+2. Magnesium-24, atomic # 12.
What is 12,12,10, +2?