C1: Atomic Structure Flashcards
Class 1
for the element ^AZ X, what does each variable mean?
- A is the mass number
- Z is the atomic number
- X is the element
for quantum numbers, what does n mean?
- what are the options?
- what is the trend?
- shell#
- 1,2,3 etc.
- use periodic table
for quantum numbers, what does
l mean?
- what are the options?
- what is the trend?
- subshell #
- l = 0, s
l = 1, p
l = 2, d
l = 3, f
for quantum numbers, what does ms mean?
- what are the options?
- what is the trend?
- spin #
- +1/2, -1/2
- if the spin ends up, it is +1/2, if it ends down it is -1/2
for quantum numbers, what does ml mean?
- what is the trend?
- orbital #
- depends on l, it is the - and + values of l. ex; if l = 1, ml can be -1, 0, 1. from here narrow it down based off the last electron spin
what shape is an s orbital?
- p orbital?
- s is sphere
- p is dumbell
how many electron boxes are there for s, p, d and f?
- s, 1
- p, 3
- d, 5
- f, 7
what are the 5 special elements when it comes to configuration?
- what makes these configurations special?
- Cr, Mo, Cu, Ag, Au
- the first set after the bracket is 1 electron less than expected and the last set is 1 more than expected
what is the purpose of drawing lewis structures?
they tell you the number of ve- per element
VSEPR theory says that electrons occupy sites in a way that ____ their repulsions and therefore position themselves as ____ from each other as possible
minimizes, far
what is the equation for nuclear binding energy?
Eb = [change in m] x 931.5 MeV/amu
what is strong nuclear force?
the force that binds protons and neutrons together
nonmetals form ____ and metals form ____
anions, cations
how do you calculate the amount of material remaining?
N =No (1/2) T/ t1/2
where N= final mass
No= initial mass
T= total decay time elapsed
t1/2= half life
what is Einsteins eq for mass energy equivalence?
- what are the units?
Eb= (change in m) c^2
m = mass
c = constant, speed of light 3x10^8 m/s
- J or MeV