Matter
The tiny particles that make up matter.
What are atoms?
The way elements are ordered in the periodic table (the number of protons in the nucleus).
What is atomic number?
Formed when two or more atoms join together chemically.
What is a molecule?
A molecule that contains at least two different elements.
What are compounds?
Formed when two or more substances combine without changing the component substances.
What is a mixture?
The simplest form of matter.
What are elements?
Rows of elements; indicates the highest stable energy level of electrons.
What are periods?
Formed when two atoms either share or exchange electrons in a way that links them together.
What is a chemical bond?
Used to express the way that atoms of various elements form bonds to become molecules and compounds.
What is a chemical formula?
Solid solutions made of two or more metals.
What are alloys?
The three subatomic particles that make up atoms.
What are protons, neutrons and electrons?
Columns of the periodic table; indicates the number of electrons in the outer layers of those elements.
What are groups?
What is an ion?
Formed from the attraction of oppositely charged ions.
What is an ionic bond?
The substance a solute is dissolved into.
What is a solvent?
The four kinds of matter ancient Greeks believed made up the universe.
Elements containing properties of both metals and non-metals.
What are metalloids?
Electrons in an atom's outermost shell.
What are valence electrons?
When two atoms share electrons to form a chemical bond.
What is a covalent bond?
Three factors that affect the solubility of a substance.
Whare are temperature, agitation, and surface area?
The nine earliest elements discovered (studied by Persian scientist Jabir ibn Hayyan).
What are gold, silver, copper, iron, lead, tin, mercury, sulfur, and carbon?
Ancient craftspeople who studied the properties of certain materials in the hopes of changing one type of material to another.
What are alchemists?
Mixtures that have two or more liquids, where one liquid contains another.
What are emulsions?
Liquid mixtures that contain small particles that do not separate out.
What are colloids?
Six methods of mixture separation.
What are magnetism, filtration, evaporation, distillation, paper chromatography, and density?