It Doesn't Matter
Anything that has mass and takes up space is called.....
Matter
The smallest unit of an element that still has the properties of that element.
Atom
This chart organizes all known elements.
Periodic Table
A pure substance made of only one type of atom.
Element
Two or more substances combined without being chemically joined.
Mixture
Is air classified as matter? Why or why not?
Yes...it has mass and takes up space.
This particle, with no charge, in the nucleus of the atom is called a......
Neutron
The one- or two-letter abbreviation representing an element.
chemical symbol
The chemical symbol O represents this element.
Oxygen
This separation method uses a filter to remove solid particles from a liquid....like coffee
Filtration
Which state of matter has a definite shape and volume?
Solid
In the atomic model, where are protons and neutrons located?
Nucleus
Most metals are found on this side of the periodic table...
Left side
A substance formed when two or more different elements chemically join together.
Compound
This type of mixture has visibly different parts, like trail mix.
Heterogenous
What change of state occurs when a solid becomes a liquid?
Melting
Located outside the nucleus, these parts of the atom are negatively charged.
Electrons
What does an elements atomic number equal?
The number of protons in the atom
This compound is formed when sodium and chlorine chemically combine.
Sodium Chloride (Table Salt)
This type of mixture looks the same throughout, like salt water.
Homogenous
What kind of change occurs when you burn paper?
Chemical Change
Changing the number of these particles changes an atom into a different element.
Protons
The horizontal rows on the periodic table are called these.
Periods
Unlike a mixture, the elements in a compound are joined together in this way.
Chemically
This method separates dissolved salt from water by allowing the water to turn into vapor.
Evaporation