Atoms
Anything that takes up space and has mass
What is Matter?
This is used to create compounds and other molecules
What are elements.
Group of atoms bonded together
What is a molecule
Toasting bread is this type of reaction
What is a chemical reaction
This type of chemical reaction absorbs energy
What are endothermic reactions
These 2 subatomic particles are found in the nucleus of the atom
What are protons and neutrons
What is "Periodic" (periodic table)
two or more elements bonded together
what is a compound
Melting Chocolate is this type of reaction
This type of reaction does not create a new substance
What is a physical reaction or change
This subatomic particle is found in the cloud or shell
What are electrons
What is the symbol for Oxygen?
O
This is what goes into a reaction
What are Reactants
Color, mass, length, volume, shape are examples of this type of property
What is a physical property
This property has a definite shape and volume
What is a solid
The number of protons and neutrons is known as the
What is the Atomic Mass
What is the symbol for Iron?
Fe
This is what is created during a reaction
What are products
This type of chemical reaction releases heat
What is exothermic
This property has no definite shape, but does have a definite volume
What is a liquid
The number of Protons is
What is the Atomic Number
This is a one or two letter "code" used to identify a specific element
What is the Atomic Symbol
What is the Law of Conservation of Mass?
Mass is neither created nor destroyed by chemical reactions or physical transformations.
This type of change looks different, and creates a new substance
What is a Chemical Change
This property has no definite shape or volume
What is a gas