Notes
Slide Show
Outline
1
Unit 2 – Electrons and Periodic Behavior
2
The Bohr Model of the Atom
3
Quantum Mechanical
Model of the Atom
4
Schrodinger Wave Equation
5
Heisenberg Uncertainty Principle
6
Electron Energy Level (Shell)
7
An orbital is a region within an energy level where there is a probability of finding an electron. This is a probability diagram for the s orbital in the first energy level…
8
Energy Levels, Sublevels, Electrons
9
Sizes of s orbitals
10
s orbital shape
11
P orbital shape
12
d orbital shapes
13
Shape of f orbitals
14
Orbital filling table
15
Pauli Exclusion Principle
16
Electron Spin
17
Electron configuration of the elements of the first three series
18
 
19
Irregular conformations of Cr and Cu
20
Wave-Particle Duality
21
The Wave-like Electron
22
Electromagnetic radiation propagates through space as a wave moving at the speed of light.
23
Types of electromagnetic radiation:
24
The energy (E ) of electromagnetic radiation is directly proportional to the frequency (n) of the radiation.
25
Wavelength Table
26
Spectroscopic analysis of the visible spectrum…
27
Spectroscopic analysis of the hydrogen spectrum…
28
Electron transitions
involve jumps of
definite amounts of
energy.
29
Mendeleev’s Periodic Table
30
Modern Russian Table
31
Stowe Periodic Table
32
A Spiral Periodic Table
33
“Mayan”
Periodic
Table
34
The Periodic Table
35
The Properties of a Group:
the Alkali Metals
36
Properties of Metals
37
Examples of Metals
38
Properties of Nonmetals
39
Examples of Nonmetals
40
Properties of Metalloids
41
Silicon, Si – A Metalloid
42
Determination of Atomic Radius:
43
Table of
Atomic
Radii
44
 Ionization Energy  - the energy required to remove an electron from an atom
45
Table of 1st Ionization Energies
46
Ionization of Magnesium
47
Electronegativity
48
Periodic Table of Electronegativities
49
Summation of Periodic Trends
50
Ionic Radii
51
Table of Ion Sizes