C1: Atomic Structure Flashcards

Class 1

1
Q

for the element ^AZ X, what does each variable mean?

A
  • A is the mass number
  • Z is the atomic number
  • X is the element
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

for quantum numbers, what does n mean?
- what are the options?
- what is the trend?

A
  • shell#
  • 1,2,3 etc.
  • use periodic table
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

for quantum numbers, what does
l mean?
- what are the options?
- what is the trend?

A
  • subshell #
  • l = 0, s
    l = 1, p
    l = 2, d
    l = 3, f
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

for quantum numbers, what does ms mean?
- what are the options?
- what is the trend?

A
  • spin #
  • +1/2, -1/2
  • if the spin ends up, it is +1/2, if it ends down it is -1/2
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

for quantum numbers, what does ml mean?
- what is the trend?

A
  • 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
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what shape is an s orbital?
- p orbital?

A
  • s is sphere
  • p is dumbell
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

how many electron boxes are there for s, p, d and f?

A
  • s, 1
  • p, 3
  • d, 5
  • f, 7
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what are the 5 special elements when it comes to configuration?
- what makes these configurations special?

A
  • 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
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the purpose of drawing lewis structures?

A

they tell you the number of ve- per element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

VSEPR theory says that electrons occupy sites in a way that ____ their repulsions and therefore position themselves as ____ from each other as possible

A

minimizes, far

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the equation for nuclear binding energy?

A

Eb = [change in m] x 931.5 MeV/amu

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is strong nuclear force?

A

the force that binds protons and neutrons together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

nonmetals form ____ and metals form ____

A

anions, cations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

how do you calculate the amount of material remaining?

A

N =No (1/2) T/ t1/2
where N= final mass
No= initial mass
T= total decay time elapsed
t1/2= half life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is Einsteins eq for mass energy equivalence?
- what are the units?

A

Eb= (change in m) c^2
m = mass
c = constant, speed of light 3x10^8 m/s
- J or MeV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is mass defect?

A

When nucleons bind together to form a nucleus, some mass is converted to energy, so the mass of the combined nucleus is less than the sum of the masses of all its nucleons individually. The difference, ∆m, is called the mass defect