Definitions
Anything that has mass and takes up space
Matter
Name NaCl
Sodium Chloride
Are group 1 elements metals or non-metals?
Metals
What does the atomic number tell you?
Number of protons
What law states matter cannot be created nor destroyed?
The law of conservation of mass
Something made up of two or more elements
Compound
Ionic compounds are made of what two types of elements?
A metal and a non-metal
What is the name given to group 18 elements?
Noble Gases
What element has 8 protons?
Oxygen
What are the starting substances called in a reaction?
The reactants
A change that does not create something new
Physical Change
Is MgF2 ionic or molecular?
Ionic
What is the ionic charge of Oxygen?
-2
Non-metals are on what side of the periodic table?
Right side
What type of reaction breaks a compound apart?
Decomposition
A change that forms a new substance
Chemical Change
Is CO2 ionic or molecular?
Molecular
What group are the halogens a part of?
Group 17
Why do elements in the same group have similar properties?
They have the same number of valence electrons
What type of reaction is this? AB+CD --> AD+CB
Double displacement
What is the difference between an element and a compound?
Element is one type of atom, compound is two or more atoms
What is the formula for dinitrogen pentoxide?
N2O5
What group is most reactive on the periodic table?
Group 1 - Alkali metals
An element is shiny, malleable, and conducts electricity. Is it likely a metal, or a non-metal?
Metal
A reaction that releases heat is called what?
Exothermic