1. What is a genetic mutation?
JUST DO IT
Daily Riddle
In Question
What is a genetic mutation?

2. Today in your notebooks
Left side items
Right side items
States of matter BP
States of matter notes
Solid, liquid, gas HW
Bill Nye phases of matter
Phase changes graph
Molecular kinetic energy notes
Atom diagram, brainpop
Atoms notes
Element box calculations
Element box notes
P, N, E practice HW
Periodic table
PT groups/famillies, PT brainpop
PT notes
Atomic trends
Atomic trends notes
Compounds and molecules, BP
Bonding notes
Atomic arrangements
Arrangements notes
Valence electrons ws
Valence electrons notes

4. Valence electrons
Valence electron – the outer ring of electrons. These are the bonding electrons.
Stable octet: an atom is stable when it has 8 electrons in its outside shell. *** true for atoms with low atomic numbers
Review
Ionization energy: energy needed to pull an electron, low energy when the nucleus is far awar
Atomic size: atoms decrease in size as you move across a period (protons are bigger than electrons and pull them in) and increase as you go down a group (adding electron shells)

5. DETAILS H Cl Cl Cl Cl H C H H Cl H H H H H H N H H H H H H H N H H

6. Common Ions
Ions-
Group 1 + Group 17
Group 2 + Group 16

7. Common compounds
Compounds
Methane = CH4
Ammonium = NH3
Water = H2O

8. Group 1
Group 2
Group 13
Group 15
Group 16
Group 17
1 valence
LOSE 1
+1 charge
2 valence
LOSE 2
+2 charge
3 valence
LOSE 3
+3 charge
5 valence
GAIN 3
-3 charge
6 valence
GAIN 2
-2 charge
7 valence
GAIN 1
-1 charge

10. Exit slip How many electrons can the first shell hold?
A. 1 B. 2 C. 3 D. 4
2. What is a valence electron?
Outside electrons B. First electron C. They bond with protons
D. They are special and live in the nucleus
3. How many electrons can the second shell hold?
A. 2 B. 8 C. 18 D. 32
4. What does the atomic number represent?
# of protons B. # of neutrons C. # of protons and neutrons
D. # of protons minus electrons
5. What does the atomic mass represent?
A. # of protons B. # of neutrons C. # of protons and neutrons D. # of protons minus electrons