Shared Flashcard Set

Details

Review
one day
18
Chemistry
10th Grade
01/15/2008

Additional Chemistry Flashcards

 


 

Cards

Term
alkali metals:
Definition
Group I in the periodic table.
Term
Aufbau principle:
Definition
When you add protons to the nucleus to build up the elements, electrons are added into orbitals
Term
colloid
Definition
It's a suspension.
Term
covalent bond
Definition
A chemical bond formed when two atoms share two electrons
Term
dipole-dipole force
Definition
When the positive end of a polar molecule becomes attracted to the negative end of another polar molecule
Term
electrolyte
Definition
An ionic compound that dissolves in water to conduct electricity.  Strong electrolytes break apart completely in water;  weak electrolytes only fall apart a little bit. 
Term
gamma ray:
Definition
High energy light given off during a nuclear process.  When a nucleus gives off this light, it goes to a lower energy state, making it more stable.
Term
ground state
Definition
The lowest energy state possible for an electron
Term
heterogeneous mixture
Definition
A mixture where the substances aren't equally distributed
Term
homogeneous mixture
Definition
A mixture that looks really "smooth" because everything is mixed up really well
Term
Hund's rule
Definition
The most stable arrangement of electrons occurs when they're all unpaired
Term
ionic bond
Definition
A bond formed when charge particles stick together.
Term
law of conservation of energy
Definition
The amount of energy in the universe never changes, ever.  It just changes form.
Term
Pauli exclusion principle
Definition
No two electrons in an atom can have the same quantum numbers
Term
solute
Definition
The solid that gets dissolved in a solution.
Term
solvent
Definition
The liquid that dissolves the solid in a solution.
Term
suspension
Definition
 A mixture that looks homogeneous when you stir it, but where the solids settle out when you stop.  Mud is a very short-lived suspension, while peanut butter is a very long-lived suspension.
Supporting users have an ad free experience!