21-30

Cards (10)

What does the period number represent? 
The number of shells
What does the group number represent? 
The number of outer shell electrons
How is the periodic table arranged? 
In order of increasing atomic number
Which side of the periodic table are metals located? 
The left hand side
Which side of the periodic table are non-metals located? 
The right hand side
What does a chemical reaction form? 
One or more new substances
What do chemical reactions require to occur? 
Activation energy
What are reactants? 
The chemicals reacting in a chemical reaction
What are products? 
The name given to the new substances formed during a chemical reaction
How many millimetres are in 1 centimetre? 
10