Date: 11-6-14
Day Plan: Notes G – Electrons
Worksheet – HW Due Friday
Opener: Chlorine, Selenium and Bromine are
located near each other on the periodic table. Which
of these elements is (Use your periodic table with arrows on it and one
with the elements)
a) has the smallest radius
B) has the highest ionization energy?
Chlorine, Selenium and Bromine
Energy
required to
remove an
electron
from an
atom
Chlorine, Selenium and Bromine
Week plans
• Week 9 – Periodic Table
– Groups, periods, classes
• Week 10 – Periodic Trends
– ( Electronegativity, Ionization, Atomic Radius)
• Week 11- Electron configuration
– Orbital Notation for electron configuration
– Quiz on Electron Configuring
• Week 12
– Periodic Table Project
– Test (November 21st)
• Week 13
– Element Naming Quiz
– first 30 elements memorized (November 25th)
Book page (86,87)
10.
Fe- Iron
Cl- Chlorine
S – Sulfur
U _Uranium
Ne- Neon
K – Potassium
Problems 10,11,16,39,40
11.
a - Cu - Copper
b - Co- Cobalt
c - Ca – Calcium
d– C - Carbon
e – Cr – Chromium
F – Cs Cesium
g - Cl - Chlorine
H - Cd - Cadmium
16.
a – PCl3
B – B2H6
C - CaCl2
D- CBr4
E- Fe2O3
F - H3PO4
Problem # 39 Number and
family of the element listed
A – Iodine
7 – halogens
B – Ca
2 – alkaline earth metals
C - Na
1- alkali metals
D – Lithium
1 - alkali metals
E – Kr
8 – noble gases
F - Sodium
1 –alkali metals
G – Ne
8 – Noble gasses
Problem # 40
Name
Symbol
Atomic #
Group
M, M, non-metal
A – Rubidium
Rb
37
Alkali metal
Metal
B – germanium
Ge
32
Carbon
Metalloid
C- magnesium
Mg
12
Alkali Metal
Metal
D – titanium
Ti
22
Transition Metal
Metal
E – Iodine
I
53
Halogens
Nonmetal
Notes G
Valence Electrons
&
Lewis Dot Structure
A) Bohr Model
– Protons and Neutrons inside the nucleus
• Protons = Atomic Number
• Neutrons = Mass Number – Atomic Number
– Electrons – orbit around the nucleus
• Fill first level before moving on to the next level
Rings/ Shell Level
1 energy level
# Electrons
Holds up to 2
electrons
2nd energy level
Holds up to 8
electrons
3rd energy level
Holds up to 8
electrons
(and every ring
after)
Drawing
B) Valence Electrons
• The outer most energy level or shell in a bohr model
• Elements behave similarly within a group
– Same number of valence electrons
C) Lewis Dot Structure –
Description
• Show an elements
valence electrons as dots
Examples
•
•
•
•
Sodium
Neon
Chlorine
Potassium
• Finish its all in the cards activity
–Make sure graphs are labeled
–Chart #1 is done
–Conclusion is Writing
Then work on Homework Due Friday