Definitions
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100
A subatomic particle without an electric charge.
What is a neutron?
100
solid, liquid and gas
what are the three states of matter?
100
A pure substance that is made up of only one kind of atom.
What is an element?
100
The amount of matter in an object.
What is mass?
200
A subatomic particle with a positive charge.
What is a proton?
200
These are the two different ways that matter can change.
What is a chemical and physical change?
200
An element that conducts heat and electricity well.
What is a metal?
200
The temperature of a liquid at which it changes to a gas.
What is boiling point?
300
A subatomic particle with a negative charge.
What is an electron?
300
The ability for a substance to react chemically.
What is reactivity?
300
A property of metal that allows it to be bent and rolled into pieces.
What is malleability?
300
The ability of a substance to be dissolved.
What is solubility?
400
The distance from the last electron shell to the nucleus of an atom.
What is the atomic radius of an atom?
400
The center of an atom.
What is a nucleus?
400
The substance formed when combining the elements of two or more atoms.
What is a compound?
400
The state of matter in which the particles are closest together.
What is a solid?
500
The amount of energy it takes to remove an electron from the outermost shell of an atom.
What is ionization energy?
500
The number of protons in an atom
What is an atomic number?
500
The change of a substance from a gas to a liquid.
What is condensation?
500
The state of matter in which the particles are farthest?
What is a gas?