Unit 1: A Mighty Molecule

STUDY
PLAY
atoms
The smallest particle in which an element can be divided, and still have the properties of that element.
molecule
Individual atoms, from two to thousands, combine to form these, which can be made up
of the same type or different types of atom.
element
Pure substance that consists entirely of one type of atom. It can be a single atom or a extended structure with thousands of atoms.
compound
A substance made up of atoms of two or more different elements joined by chemical bonds
noble gases
Atoms from this group of elements usually do not attract to others to form molecules.
chemical bond
the force that holds two atoms together
extended structures
A molecular structure made up of repeated pieces - from 10's to 10's of thousands - that can take many forms. In some structures, the same molecule repeats; in other structures, the
same atom of a single element repeats.
repeating subunits
Molecules that can connect to each other to create a larger structure.
crystalline structure
A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern
state of matter
A physical property that describes matter as a solid, liquid, or gas.
solid
Particles tightly packed and vibrate in place, doesn't take shape of container
liquid
Particles vibrate but can slide past each other and take on shape of container
gas
Fast moving particles that are spread far apart and can escape a container
kinetic energy
Energy of motion
thermal energy
Energy produced from atoms and molecules moving.
heat
The transfer of thermal energy from one object to another.
motion
tends to make the atoms or molecules move farther apart
attraction
tends to keep the atoms or molecules grouped together
phase change
A change from one state of matter to another from the addition or removal of thermal energy. The type of substance does not change.
condensation
The change in state from a gas to a liquid
evaporation
The change in state from a liquid to a gas
melting
The change in state from a solid to a liquid
freezing
The change in state from a liquid to a solid
sublimation
A change in state from a solid to a gas without becoming liquid
deposition
The change in state from a gas to solid without becoming a liquid
pressure
the amount of force exerted per unit area of a surface
YOU MIGHT ALSO LIKE...