Organizing the Elements

Drill # 39 10/22/141. Use the periodic table to answer the

following questions.2. Name, period, and group of element

#88? _________, ___, ____3. Element name , symbol, and atomic #

in group 6A (or 16) and period 3?__________, _____, _____4. Element name , symbol, and atomic #

in group 8A (or 18) and period 1?__________, _____, _____

Topic: Organizing the ElementsObjective: SWBAT Explain how the periodic table is

organized Identify the main blocks in the

periodic table

HW: Draw a labeled diagram of the periodic table.Don’t include specific elements but do include periods, groups, and the main blocks

The Modern Periodic Table

The Periodic Table is a listing of all the known elements.

The elements are organized by: Atomic number Chemical Properties

Who created it? First some individual elements

were discovered.   By 1860 about 60 elements were

known.  In 1869, Russian chemist Dimitri

Mendeleev proposed arranging elements by atomic weights and properties.

The table contained gaps but Mendeleev predicted the discovery of new elements.

The Periodic TableThe Periodic Table Column = Group

or___________

_____ columns on the Periodic Table

Row = __________

_____ rows on the

Periodic Table

Family

Period

18

7

IUPAC

International Union of Pure and Applied Chemistry

1985 new system for labeling groups.

The Periodic Table

Periods = RowsPeriods = Rows The bottom two rows

actually fit in the gap shown in periods 6 and 7

They are pulled out so that the periodic table is shorter

GP: Filling in the Periodic Table We will cut a blank periodic table and

reassemble it as it should be (stretch it) Next, we will fill out the atomic

numbers in proper order Materials:

Blank table Scissors Long paper Tape or glue Pencil

Now cut out the extra margins and glue the table in the long paper

1. Number all boxes in the following order:

2. Start at the top left = 13. Skip over to finish the first

period on the right = 24. Start a new period on the

next line5. …keep going in order…

Write in pencil that can be erased and don’t press too hard !!

Color and label the main blocks

page 163Include a color code keyChoose your own colors

Did we achieve?

Objective: SWBAT Explain how the periodic table is

organized Identify the main blocks in the

periodic table

HW: Draw a labeled diagram of the periodic table.Don’t include specific elements but do include periods, groups, and the main blocks

ET: To get credit you must work quietly in your seat and

answer in complete sentences1. How many periods are in the

periodic table?2. What period are the lanthanides

in?3. Why do we list the lanthanides

and actinides under the main table?

Groups = ColumnsGroups = Columns(called Families)(called Families)

The elements in a group have the same number of electrons in their outer orbital.

Every element in the first column (group one) has one electron in its outer shell. Every element on the second column (group two) has two electrons in the outer shell. As you keep counting the columns, you'll know how many electrons are in the outer shell.

There are some exceptions to the order when you look at the transition elements, but you get the general idea.

Metals, Nonmetals, and Semi-Metals, Nonmetals, and Semi-metalsmetals

Metals are on the _________ side of the stair- step

____________ is the onlynonmetal on the ___________ side

______________ are on the right of the stair-

step

Semi-metals or

_____________

touch the stair-step

Hydrogen Nonmetals

left

metalloids

metal

ALKALI METALS

Group 1 Hydrogen is _____a

member, it is a non-metal

_____ electron in the outer shell

Soft and silvery _________

Very _____________, especially with water

Conduct _____________

NOT

1

metalsreactive

electricity

ALKALINE EARTH METALSALKALINE EARTH METALSGroup 2 ____ electrons in

the outer shell White and

malleable (able to be ___________

Reactive, but less than Alkali metals

Conduct electricity

2

molded

TRANSITION METALSTRANSITION METALSGroups in the middle Good conductors

of heat and electricity

Some are used for _____________

The transition metals are able to put up to _____ electrons in their second to last shell

Can ________ with many _________in a variety of shapes

jewelry

32

bond

elements

BORON FAMILY BORON FAMILY

Group 3 ____ electrons

in the outer shell

______ are metals

Boron is a _____________

3

Most

metalloid

CARBON FAMILY CARBON FAMILY Group 4 ___ electrons

in the outer shell

Contains metals, metalloids, and a _____________Carbon (C)

4

Non-metal

NITROGEN FAMILYNITROGEN FAMILY Group 5 ____ electrons

in the outer shell

Can _________ electrons to form compounds

Contains metals, metalloids, and non-metals

5

share

OXYGEN FAMILYOXYGEN FAMILY

Group 6 ____ electrons

in the outer shell

Contains metals, metalloids, and non-metals

_____________

6

Reactive

HalogensHalogensGroup 7 ____ electrons in

the outer shell _____ are non-

metals ________

____________-are often bonded with elements from Group 1

7

ALL

VERYREACTIVE

Noble GasesNoble GasesGroup 8 Exist as gases Non-metals ____ electrons in the

outer shell = _________

Helium (He) has only ____ electrons in the outer shell = Full

____ ___________ with other elements

8

FULL

2

NOT REACTIVE

Rare Earth MetalsRare Earth Metals(Special rows on the Periodic Table)(Special rows on the Periodic Table)

Some are _____________

The rare earths are silver, silvery-white, or gray metals.

Conduct electricityActinides

Lanthanides

radioactive