Term
Electromagnetic Radiation
(order) |
|
Definition
Radio Waves
Microwave
Infared heat
Visible Light
Ultra Violet
X-ray
Gamma ray |
|
|
Term
|
Definition
|
|
Term
|
Definition
The physical distance between peaks
m
lambda |
|
|
Term
|
Definition
wavelength/cycle/sec
Hz = 1/s = s^-1 |
|
|
Term
|
Definition
the smallest amt of energy that can be emitted/absorbed in electromagnetic radation
(packets of energy that can be either absorbed or released)
a unit |
|
|
Term
|
Definition
|
|
Term
|
Definition
the minimum frequency that causes the electrons to eject (diferent for each metal)
less intensity-> less electrons
more intensity -> more packets -> more electrons come off |
|
|
Term
|
Definition
lambda= h/mv
(mass*velocity) |
|
|
Term
| Heisenberg's Uncertaintity Principle |
|
Definition
| you can't determine where an electron is. The very act of observing changes the observed. |
|
|
Term
| Pauli's Exclusion Princliple |
|
Definition
| elecrons can never be doing the same thing as another in the same atom; each atom has its own unique address |
|
|
Term
|
Definition
| electrons do not 'pair up' until all equivalent orbitals have 1e- (more stable) |
|
|
Term
|
Definition
| same electron configuration as another |
|
|
Term
|
Definition
| attraction to nucleus is smaller when there are more electrons (than when there is just one) |
|
|
Term
|
Definition
the positive charge experienced by an electron in a many-electron atom
the stregth of the the effect the nucleus has on a (far out) electron |
|
|
Term
|
Definition
length of nucleus to outer most (radius)
Trend:
atomic size gets bigger as you go down groups
atomic size decreses (slightly) as you move right on the period |
|
|
Term
|
Definition
the energy required to remove an electron from the atom
ALWAYS POSITIVE
Trend:
increases as you move right on the period
decreases when you move down in a group
Anomolies:
between...
Be/B
N/O
Mg/Al
P/S |
|
|
Term
|
Definition
the energy change when an atom gains an electron to from an anion
the greater the negative, the more the atom wants it
Trend: becomes more neg (relases more energy/heat as you move right on the period
No real trend moving down groups
Anomalies:
Be>0 (already has a filled sublevel, doesn't really want it)
same for N, Mg |
|
|
Term
| Relative Sizes of Atoms to their Ions |
|
Definition
Atoms always become smaller when they become cadions (metals, looses electrons)
atoms always become bigger when they become anions (nonmetals, gains electrons) |
|
|
