Matter and materials Flashcards
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Matter
Everything that has mass and volume
Pure substance
A single substance
Element
A pure substance that consists of only one type of atom
Compound
A pure substance consisting of two or more types of atoms that are chemically bonded
Molecule
Two or more atoms that are chemically bonded
Mixture
Two or more substances physically blended together
Homogeneous
a mixture with uniform composition
Heterogeneous
A mixture with non-uniform composition
Metals
Found on the left side of the periodic table
non-metals
found on the right side of the periodic table
Metalloids
Found next to the dividing line
Ions
An Atom that has either lost or gained electrons
Polyatomic ions
two or more atoms that behave as a single unit
Ionic compounds
A metal bound to a nonmetal through an exchange of electrons
Particle
An atom or molecule
Density
a substance’s mass per unit of volume
Pressure
The force applied per unit of area
Concentration
The amount of a substance contained within a mixture
Brownian motion
The random motion of small particles suspended in a liquid or gas, caused by the collision between the particles and molecules of the surroundings
Force
A push or pull between two or more objects
Diffusion
The process whereby particles of liquids or gases randomly move from an area of high concentration to an area of low concentration
