Element Names & Symbols
Chemical Reactions
The Periodic Table
Random
100
What is the chemical symbol for Hydrogen?
H
100
A reaction in which two or more substances combine to form a single new substance.
A+B→AB
Combination/Synthesis Reaction
100
The periodic table is used to display and organize all the chemical ______________
elements
100
Is water boiling an example of a chemical or physical change?
Physical
200
What element is represented by the symbol O?
Oxygen
200
a reaction in which a compound breaks down into two or more simpler substances.
AB→A+B
Decomposition Reaction
200
What categories is the periodic table organized into in this image?
Metals, metalloids, nonmetals
200
What is the positively charged particle in an atom?
Proton
300
Using this image, identify the chemical symbol for gold.
Au
300
a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Must involve O2 as one reactant.
Combustion Reaction
300
What is the atomic number of oxygen? 
8
300
What is the name of a positively charged ion?
Cation
400
What element has the chemical symbol Fe?
Iron
400
a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
AB+CD→AD+CB
Double Replacement Reaction
400
What information is displayed on each square of the periodic table? (Use the image to identify all 4)
Element name, atomic number, element symbol, atomic weight/mass
400
What is the negativey charged particle in an atom?
Electron