some components of the mixture dissolve &
some do not. Filtrate is what passes through the filter.
What is Filtration
100
[atomos]
philosopher who decided that matter was discontinuous
What is Democritus
100
the mass of all the reactant molecules = the mass of all the
product molecules
What is Law of the conservation of Mass
100
V1
T1
=
V2
T2
What is Charles law
100
Each orbital can be occupied by no more than two
electrons
What is The Pauli Exclusion Principle
200
some components vaporize at different
temperatures or one component may not vaporize at all
, complete separation may not be
possible
What is Distillation
200
[nuclear model/solar system model]
most of the mass of the atom is concentrated in a tiny,
positively-charged nucleus
What is Ernest Rutherford
200
the percentage composition of any sample of a substance
is the same
What is Law of definite composition
200
P1
T1
=
P2
T2
What is Gay Lussacs Law
200
The electrons occupy the lowest energy orbitals
available. The “Ground State” for an atom is when
every electron is in its lowest energy orbital.
What is Aufbau Principle
300
differences in solubility vs. adhesion to
the substrate.
What is Chromatography
300
[billiard-ball model]
experiments with gases… different substances are
different combinations of atoms
What is John Dalton
300
when two compounds made of the same two elements
are broken down to give the same
mass of one element. the masses of the other element
will be in simple whole-number ratio.
What is Law of multiple proportions
300
P1V1 = P2V2
What is Boyles Law
300
When more than one orbital exists of the same energy
(p, d, and f orbitals), place one electron in each orbital
What is Hunds Rule
400
properties depend on the amount of substance.
What is Extensive Properties
400
is given credit for discovering electrons
using a Crookes tube and testing many different gases
What is JJ Thompson
400
the mass of one of the
isotopes. This mass is due to the protons and neutrons.
What is Mass number
400
P1·V1
T1
=
P2·V2
T2
What is Combined Gas Law
400
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6, etc.
What is Electron Configuration
500
properties are independent of the size of the
sample. These are useful for identifying substances.
What is Intensive properties
500
[Bohr Model (quantized e- energy levels/orbits)]
What is Niels Bohr
500
atoms with the same number of protons,
but different numbers of neutrons. Atoms
with the same atomic number, but
different mass numbers.