Matter
Atoms
Solutions
The Periodic Nature of Chemistry
Compounds
100
A measure of the amount of matter in an object
What is mass?
100
The subatomic particle that has no charge.
What is a neutron?
100
A mixture that is not evenly mixed throughout.
What is a heterogeneous mixture?
100
The name of the vertical columns on the periodic table.
What is a family/group?
100
The electrons in the highest energy level of an atom.
What are valence electrons?
200
It consists of two or more substances that are not chemically combined.
What is a mixture?
200
The scientist is credited with the discovery of the electron.
Who is J.J. Thomson?
200
This scales measures the acidity and alkalinity (basic) strength or weakness of a solution.
What is pH?
200
The name for the horizontal rows on the periodic table.
What is a period?
200
These elements are on the left side of the periodic table.
What are metals?
300
When a substance physically changes directly from a solid to a gas.
What is sublimation?
300
The central portion of an atom that contains the majority of the mass of an atom.
What is the nucleus?
300
This substance may be added to increase the speed of a reaction, but it is not a part of the chemical reaction.
What is a catalyst?
300
Another name for column 2, II, or IIA of the periodic table.
What are alkali earth metals?
300
These elements are on the right side of the periodic table.
What are nonmetals?
400
The physical state of a substance where neither shape nor volume is fixed.
What is a gas?
400
In this model the electrons move in a fixed path around the nucleus.
What is the Bohr model?
400
A solution that holds all the solute that it can under the given conditions.
What is a saturated solution.
400
Another name for column 18, VIII, or VIII8 of the periodic table.
What are noble gases?
400
Particles with positive or negative charges.
What are ions?
500
The so called fourth state of matter.
What is plasma?
500
Elements that have the same number of protons, but different numbers of neutrons.
What are isotopes?
500
The liquid known as the universal solvent.
What is water?
500
The elements generally found on the "staircase" between the metals and nonmetals?
What are metalloids?
500
The two ways that valence electrons can form ionic or covalent bonds.
What are transfer and sharing of electrons?
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