Atomic Structure
Periodic Table
More Periodic table
Properties
Random
100
Proton
What is the positively charged part of nucleus in an atom
100
Vertical columns on periodic table
What are groups
100
The gases in group 18 that almost NEVER react with other elements
What are noble gases
100
The measure of ability of an element to form bonds with other elements
What is reactivity
100
A physical state of matter which has the ability to "flow"
What is a liquid
200
The center of the atom where protons and neutrons are located
What is the nucleus
200
Horizontal rows on periodic table
What are periods
200
The elements in group 1 that are highly reactive with other elements
What are alkali metals
200
The measure of the mass of a substance
What is density
200
The temperature at which a solid changes to a liquid
What is melting point
300
The region of an atom where electrons can be found
What is the electron cloud
300
Calculated by taking atomic weight/mass and subtracting protons
What are neutrons
300
The name of the elements in group 17 - they are very reactive with elements in group 1
What are halogens
300
The measure of how much of a substance dissolves in another substance
What is solubility
300
A chemical reaction that is "covered" and is NOT able to react with other substances
What is closed system
400
Negatively charged particles of an atom
What are electrons
400
A type of element that has some properties of a metal and some properties of a non-metal
What is a metalloid
400
Scientist who developed periodic table
Who is Mendeleev
400
A solid that forms in a solution as a result of a chemical reaction
What is a precipitate
400
The substance that is created by combining elements in a chemical reaction
What is a compound
500
The total mass of an element that is equal to the number of protons and neutrons
What is atomic mass
500
A type of element that does not conduct electricity or heat and is usually a gas at room temperature
What is a non-metal
500
A type of element that is usually shiny, easily shaped and conducts electricity and heat
What is a metal
500
The property of an element that allows electricity to flow through it
What is conductivity
500
The physical state of matter which can expand to fill any container
What is a gas
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