Studied by 28 people
x-ray
dislodges electron from air molecules which becomes attached to an oil drop
electron charge
-1.6 * 10^-19
thomson’s charge/mass of electron
-1.76 * 10^8
electron mass
9.10 * 10^-28
rutherford’s experiment design
atoms positive charge is concentrated in nucleus proton is opposite of electron
mass of proton
1.67 * 10^-24
atomic radius
100pm = 1* 10^-10
nuclear radius
5*10^-3 = 5*10^-15
if atom is houston astrodome
nucleus is marble on 50-yard line
molecular formula
actual formula
empirical formula
simplest formula
acid
yields hydrogen ions when dissolved in water
oxoacids
acid that contains h,o, and another element
base
yields OH- when dissolved in water
hydrates
specific # of water molecules attached to them
formula mass
sum of atomic masses in a formula unit of an iionic compound
thermite reaction
mix of aluminum and ferric oxide
james clerk maxwell
visible light consists of electromagnetic waves
black body problem
solved by Planck in 1900
photoelectric effect
solved by Einstein in 1905, light has both wave and particle nature
bohr’s model of atom
electron can only have specific energy values
light is emitted as electron moves from one energy level to lower energy levels
ePhoton
Ef-Ei
Ef
-Rh(1/n²f)
Ei
-Rh(1/n²i)
rhydberg equation
Rh(1/n²i-1/n²f)
de broglie
reasoned that electron is both particle and wave
laser
light is intense, monoenergetic, and coherent
schrodinger wave equation
described dual nature of the electron
wave function describes
energy of electron with given wave function
probability of finding electron in volume of space
principal quantum number
distance of electron from nucleus
angular momentum number
shape of orbital that electron occupies
magnetic quantum number
orientation of orbital space
shell
electrons with same value of n
subshell
smae vales as n and l
orbital
same values as n,l, and m
electron affinity
negative charge of energy change that occurs when electron is accepted by atom in the gaseous state to form an anion
effective nuclear charge
positive charge felt by electron
Zeff
Z - sigma
Note 
Flashcard (39)