Element Symbol # of protons # of neutron s # of electro n Atomic # Mass # Oxygen 8 8 16 Silicon Si 14 14 28 Aluminum Al 14 13 13 Iron 26 56 Ca 20 20 40 BELLWORK: WEDNESDAY 2/22/2012 1- Turn in Pink Bellwork and get a NEW BLUE Bellwork! 2- Complete the table without looking at a periodic table. 8 8 14 14 13 27 26 30 26 20 20 Fe O Calcium
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ElementSymbol # of protons # of neutrons # of electron Atomic # Mass # Oxygen8816 SiliconSi141428 AluminumAl141313 Iron2656 Ca202040 BELLWORK: WEDNESDAY.
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Element Symbol # of protons
# of neutrons
# of electron
Atomic # Mass #
Oxygen 8 8 16
Silicon Si 14 14 28
Aluminum Al 14 13 13
Iron 26 56
Ca 20 20 40
BELLWORK: WEDNESDAY 2/22/20121- Turn in Pink Bellwork and get a NEW BLUE Bellwork!
2- Complete the table without looking at a periodic table.
8 8
1414
13 27
26 30 26
20 20
Fe
O
Calcium
Not exactly what I would call ‘good’No retakes, redo’s, or correctionsBUT….
Is there anything YOU could have done as a student to help prepare you for the quiz?
Is there anything I could have done as a teacher to help prepare you for the quiz?
Turn in Packet 9. I will be recording grades and passing them back.
QUIZ RESULTS
CYOPT- Create Your Own Periodic Table…
…as well as labeling and taking notes on each group of elements
CYOPT- STRUCTURE OF THE ATOM
ProtonPositively Charged
Inside the Nucleus
Valence Electron Negatively Charged
Outside the Nucleus; in the outside shellElectron
Negatively Charged
Outside the Nucleus
NeutronNeutrally Charged
Inside the Nucleus
Charge of atom:
Neutral
Charge of nucleus: Positive
Each square of the Periodic Table usually includes the element’s name, atomic number, chemical symbol, and atomic mass.
READING THE PERIODIC TABLE OF THE ELEMENTS
Element’s Name
Atomic Number
Chemical (Atomic) Symbol
Atomic Mass
NOTE: They can be organized different ways. What is an easy way to tell the difference between the
atomic mass and the atomic number??
READING THE PERIODIC TABLE OF THE ELEMENTS
Atomic Mass = # of protons + # of neutrons
Atomic Number = # of protons
Organized by increasing atomic number
Valence Electrons[Sketch Table ]
An element’s properties can be predicted from its location in the periodic table
Group/Family = column (up/down)# of valence electrons
Period = row (left to right)# of orbitals/shells
CYOPT- READING
THE PERIODIC
TABLE
Group
# Valence Electron
s
1 1
2 2
13 3
14 4
15 5
16 6
17 7
18 8
Fill in the Key at the top for Carbon Follow my example on the board
Begin fi lling in the atomic symbol, atomic mass, and atomic number for the elements in BIG white PT—be sure to use the same order as the key!
If you didn’t finish the Life Science Vocab in CRT Packet, then it is homework! If you need a book to take home, you may check one out after school.
CREATE-YOUR-OWN (CYO) PERIODIC TABLE (PT)
Periodic Table Crossword Puzzles Packet 9, Page 18 and 19 Do your best from what you know, and use the
periodic table and process of elimination to figure out the rest!
Oh….and it’s extra credit!
Fill in the Key at the top for Carbon Follow my example on the board
Begin fi lling in the atomic symbol, atomic mass, and atomic number for the elements in BIG white PT—be sure to use the same order as the key!
If you didn’t finish the Life Science Vocab in CRT Packet, then it is homework! If you need a book to take home, you may check one out after school.
CREATE-YOUR-OWN (CYO) PERIODIC TABLE (PT)
Periodic Table Crossword Puzzles Packet 9, Page 18 and 19 Do your best from what you know, and use the
periodic table and process of elimination to figure out the rest!
Element Symbol # of protons
# of neutrons
# of electro
n
Atomic #
Mass #
Sodium 12 11
Cu 29 35 29
Mg 12 24
Au 79 197
Silver 61 47
BELLWORK: THURSDAY 2/23/2012
11 23
29 64
12
118 79
47
11
12 12
79
47 108
Gold
Copper
Magnesium
Na
Ag
Complete the table without looking at a periodic table.
Almost 75% of all elements are classified as metals
Physical properties of metals:1. hardness 2. luster (shininess)3. malleability (can be
pounded or rolled into shapes or flat sheets)
4. ductility (can be pulled out or drawn into wires)
5. Conductors (transmit heat and electricity easily)
6. Magnetic (attracted to magnets) ex. iron (Fe), cobalt
(Co), and nickel (Ni)
7. Most metals are solids at room temperature (high melting point) Exception: Mercury
(Hg)--liquid at room temperature
METALSCYOPT – Write in
the “Metals” Section
GROUP 1: ALKALI METALS
1
Group 11 valence electron
which it readily loses to become a cation
Extremely reactive – NEVER found alone in nature
Only found in compounds, combined with other elements
Reacts violently with water to produce explosions
Causes skin burns if you come into contact with it
Physical Properties: Soft- can be cut with a
plastic knife Shiny Lightweight Good conductors of
electricity and heat Low melting points Tarnishes rapidly
GROUP 1: ALKALI METALS
BELLWORK FRIDAY: 2/24/12
GROUP 2: ALKALINE EARTH METALS
2
Group 22 valence
electrons 2nd most
reactive group of elements in the periodic table
Chemically bond very easily by giving away 2 electrons
Physical Properties:Fairly hardbright whitegood conductors of electricity
high melting pointshigh densities
Why called Alkaline? When mixed in solutions =pH greater than 7Those pH levels are defined as 'basic' or 'alkaline' solutions
GROUP 2: ALKALINE EARTH METALS
3 4 5 6 7 8 9 10 11 12
GROUPS 3-12: TRANSITION METALS
Groups 3-12Largest group of
elementsMost commonly found
elementsFollows NO rules when
finding valence electrons
Use the two outermost shells/orbitals to bond with other elements Most elements only use
the valence shell
Physical Properties: Most are hard and shiny All are good conductors