Around Atoms
Properties of Matter
All the Changes
Periodic Table
Behind The Reactions
100
The smallest unit of matter.
What is an atom?
100
A property of matter that can be identified without changing the identity of the object.
What is a physical property?
100
A change that can be reversed.
What is a physical property?
100
A vertical column on the periodic table.
What is a group?
100
The symbolic representation of a chemical reaction.
What is a chemical equation?
200
The center of an atom, containing protons and neutrons.
What is the nucleus?
200
A property that can be identified by changing the objects identity.
What is a chemical property?
200
A change that cannot be reversed.
What is a chemical property?
200
A period on the periodic table.
What is a row?
200
The symbols used in a chemical equation.
What is the chemical formula?
300
The area around the atom that contains electrons.
What is the electron cloud?
300
States that matter cannot be created or destroyed.
What is the law of conservation of energy?
300
A reaction that takes place while the chemical makeup of an object is changed.
What is a chemical reaction?
300
Found along the 'zig-zag' line, these elements contain properties of both metals and nonmetals.
What is a metalloid?
300
A small number representing the number of atoms of an element in a chemical equation.
What is a subscript?
400
The total mass of an atom.
What is the atomic mass?
400
Anything that takes up space.
What is matter?
400
Occurs when the state of matter of an object changes from a liquid to a gas.
What is evaporation?
400
A row of elements on the periodic table.
What is a period?
400
The elements found on the left side of the equation.
What is the reactants?
500
An electron found on the outermost orbital.
What is a valence electron?
500
A property of matter unique to one substance, staying the same no matter how much of the substance there is.
What is a characteristic property?
500
The transition of a solid directly into a gas.
What is sublimation?
500
Most common on the periodic table, found on the left side.
What is a metal?
500
The elements found on the right side of a chemical equation.
What is the products?
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