1. Housekeeping

◦ Rules, Door, Attention signal, Bathroom

◦ Class average = seats = rule 3

2. Quizzes beginning of class◦ Must be on time to class – No Excuses; tardies

3. Tutoring – 2:15

◦ Sign log

◦ Grade, help, etc

ANNOUNCEMENTS!Title Page #

Book learning 42

Book learning 43

Book learning 44

Nuclear Chem IP 45

Nuclear Chem Notes 46

Half-life Lab 47

Periodic Table #2 48

Periodic Trends Notes 49

Periodic Trends IP 50

p4 p7 p8

The Periodic TableThe periodic table is an organizing structure based on the properties of the elements.

The Periodic Table Element GroupsElements belonging to a group typicallyshare several common properties. Also,elements in a group share a commonnumber of valence electrons. (Vertical)

Element PeriodsElements in a period share a highest unexcitedelectron energy level. There are more elementsin some periods than others because thenumber of elements is determined by thenumber of electrons allowed in each energysublevel. (Horizontal)

Alkali MetalsAlkali Earth MetalsTransition MetalsHalogensNoble Gases

1. Create a key 2. Place medium-sized marker dots in each box

NOBEL GASES

1A 2A 3A 4A 5A 6A 7A 8A

Answer CFU #1-4

5 minutes

CFU: Identify the chemical family to which each of the following elements belongs: Identify the chemical family to which each of the following elements belongs:

Element Chemical Family

Potassium

Iodine

Radon

Chromium

Magnesium

Fluorine

Alkali Metals

Halogens

Noble Gases

Transition Metals

Alkali Earth Metals

Halogens

CFU: Which chemical families are named for the metals they contain?

Alk

ali M

etal

s

Alk

ali E

arth

Met

als

CFU: Which chemical family is composed of elements that do not react in a chemical reaction?

No

ble

Gas

es

CFU: What is the name of the largest chemical family on the periodic table?

Transition Metals

WE WILL BE ADDING 8 ARROWS TO YOUR TABLE, MAKE ROOM!!!!!!!!

Metals,Non-metals, and Metalloids

1. Create a key 2. Shade each region using a color pencil/crayon

Metallic character refers to the level of reactivity of a metal. Metals tend to lose electrons in chemical reactions.

Metals

A metal is a material (an element, compound, or alloy) that is typicallyhard, opaque, shiny, and has good electrical and thermal conductivity.

Metals are generally:Malleable - can be hammered or pressed permanently out of shape

without breaking or crackingFusible - able to be fused or meltedDuctile - able to be drawn out into a thin wire

Non-MetalsNon-metals are not able to conduct electricity or heat very well. Asopposed to metals, non-metallic elements are very brittle, and cannotbe rolled into wires or pounded into sheets.

Seventeen elements are generally classified as nonmetals; most aregases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine,argon, krypton, xenon and radon); one is a liquid (bromine); and a feware solids (carbon, phosphorus, sulfur, selenium, and iodine).

MetalloidsA metalloid is a chemical element with properties in between, or that are a mixture of, those of metals and nonmetals. There is no standard definition of a metalloid, nor is there complete agreement as to which elements are appropriately classified as such.

Metallic Character Trend

Metallic character increases as you move down an element group in the periodic table. WHY? Atomic radius increases (less

attraction between the nucleus and the valence electrons because of the increased distance).

Metallic character decreases as you move across a period in the periodic table from left to right. This occurs as atoms more readily

accept electrons to fill a valence shell than lose them to remove the unfilled shell.

Metals tend to lose electrons in chemical reactions. Will I…

Gain 1 e-or

Lose 7 e-

Will I…Gain 7 e-

orLose 1 e-

Answer CFU #1-3

5 minutes

CFU

1. Which of the following elements can be characterized as a metal?

Potassium Chlorine Cadmium Molybdenum Carbon Krypton

2. Classify each of the elements below as either a(n): metal, metalloid or non metal:

Lithium Aluminum SulfurStrontium Oxygen Helium

CFU

RANK THE LIST OF METALS IN ORDER (4-HIGHEST/1-LOWEST) OF THEIR INCREASING METALLIC PROPERTIES:

POTASSIUM GERMANIUM ARSENIC ZINC

4 2 1 3

LITHIUM RUBIDIUM CESIUM POTASSIUM

1 3 4 2

A

B

Atomic Radius

The atomic radius of a chemical element is a measure of the size of its atoms.

As you move downa group, atomic radius increases.

As you move across a period, atomic radius decreases.

We have more ve- ,

so we’ll hold onto them

tightly

We have less ve- , so we wont hold

them as tight

ATOMIC RADIUS

METALLIC

CHARACTER

LEFTD

OW

N

CFU

5 minutes

CFU1. What property of an atom does the atomic radius define?

a. Size of the atomb. Color of the excited atomc. Shape of orbitalsd. Number of electrons

2. Rearrange the following elements in order of INCREASING ATOMIC RADIUS

3. Rearrange the following elements in order of DECREASING ATOMIC RADIUS

BoronCarbonFluorine NitrogenOxygen

IndiumPalladium Silver TinYttrium

5 minutes

Work TimeINDEPENDENT PRACTICE

Half-life IP

Periodic Trends IP #2

HOME LEARNING

Chapter 2 Section 6 pgs.140-151

Atoms with More than One Electron

CU: #’s 1-5

C2G: #’s 1-8

Chapter 2 Section 7 pgs.152-161

How e- determine Chem. Behavior

CU: #’s 1-2

C2G: #’s 1-5

Chapter 2 Section 8 pgs. 162-170

How Atoms Interact with Each Other

CU: #’s 1-3a-d

C2G: #’s 1(all), 4a, and 5a-d

Spot check, last 15 min

1. Housekeeping

◦ Rules, Door, Attention signal, Bathroom

2. Tutoring – 2:15

◦ Sign log

◦ Grade, help, etc

3. Thanksgiving assignment (Reading)

◦ FOCUS

◦ Kinga2.weebly.com

◦ REMIND (ExCr)

ANNOUNCEMENTS!Title Page #

Book learning 42

Book learning 43

Book learning 44

Nuclear Chem IP 45

Nuclear Chem Notes 46

Half-life Lab 47

Periodic Table #2 48

Periodic Trends Notes 49

Periodic Trends IP 50

Trend 3: Electronegativity Electronegativity is a measure of the tendency of an atom to attract electrons.

Electronegativity Trend

As you go left to right a period the electronegativity increases.

As you go up a group, electronegativity increases.

More valence e-Less valence e-

Electronegativity Trend

The most electronegative element is fluorine. If you remember that fact, everything becomes easy, because electronegativity must always increase towards fluorine in the Periodic Table.

isotope More or Less Neutrons

ion Charged atom; More or Less Electrons

Trend 4: Ionization EnergyThe ionization energy (IE) the amount of energyrequired to remove a valenceelectron of an atom to form an ion.• 1st Ionization Energy: energy

needed to remove the first electron

• 2nd Ionization Energy: energy needed to remove the second electron, etc.

Similar concept to electronegativity

= removing e-

ELECTRONEGATIVITY

IONIZATION ENERGY

UP

RIGHT

Answer CFU #1-4

5 minutes

Easiest to hardestNa < Mg <Al < SiNa > Mg <Al > Si

CFU #1Which of the following is the correct order for the first ionization energies of their elements?

a.B < Be < N < O b.Be < B < N < O c. B < Be < O < N d.B < O < Be < N

CFU #2The incorrect statement among the following is:

a. The first ionization potential of Al is less than the first ionization potential of Mg.

b. The second ionization potential of Mg is greater than the second ionization potential Na.

c. The first ionization potential of Na is less than the first ionization potential of Mg.

d. The third ionization potential of Mg is greater than that of Al.

CFU #3The first ionization potentials of Na, Mg, Al and Si are in the order:

a. Na < Mg > Al < Sib. Na < Mg < Al > Sic. Na <Mg < Al < Si d. Na > Mg <Al > Si

CFU #4The increasing order of the first ionization

enthalpies of the elements B, P, S and F

(lowest first) is:

a. F < S < P < B

b. P < S < B < F

c. B < P < S < F

d. B < S < P < F

Check for Understanding1. Define electronegativity

2. On the Pauling scale the electronegativity's of nitrogen and oxygen are respectively 3.0 and 3.5. Why is oxygen more electronegative than nitrogen? (Think Position)

3. On the same scale, the electronegativity of sulphur is 2.5. Why is sulphur less electronegative than oxygen. (Think Position)

4. By thinking about where the following atoms are in the Periodic Table, sort them into order of Increasing electronegativity: Aluminium, Barium, Boron, Caesium, Calcium, Carbon, Fluorine

Work TimeINDEPENDENT PRACTICE

Half Life Independent Practice #1

Periodic Trends Independent Practice #2

HOME LEARNING

Chapter 2 Section 6 pgs.140-151

Atoms with More than One Electron

CU: #’s 1-5

C2G: #’s 1-8

Chapter 2 Section 7 pgs.152-161

How e- determine Chem. Behavior

CU: #’s 1-2

C2G: #’s 1-5

Chapter 2 Section 8 pgs. 162-170

How Atoms Interact with Each Other

CU: #’s 1-3a-d

C2G: #’s 1(all), 4a, and 5a-d

Spot check, last 15 min