23 24Periodic Table

Starter: Complete sort with group

Application/Connection:

Notes

Sep 10, 2015 Sep 10, 2015

Exit: Name some other things are grouped together because of their similarities.

Periodic Table

Why is a system of organization important?

Practice

EQ: What are the patterns that are found on the periodic table?

Agenda

1. Starter2. Notes

3. Coloring Periodic Table 4. Exit

5. Homework

Date Lecture/ Activity/ Lab Page8/28 Syllabus /Notebook Guidelines 1-28/28 Periodic Table/ Formula 3-48/28 Tools/ Measurement 5-68/28 Lab Report/ Investigations 7-88/31 Atomic History 9-10 9/1 Atomic Structure 11-12 9/2 Atomic Charges 13-149/3 Ape Man 15-169/4 Electron Placement 17-189/8 Valence Electrons 19-209/9 Atomic Math 21-229/15 Periodic Table Notes 23-24

Table of Contents

Practice-The Periodic Table

TEKS 8.5C interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements

TEKS 8.5B identify that protons determine an element’s identity and valence electrons determine its chemical properties, including reactivity

The modern periodic table was created by Russian chemist, Dmitri Mendeleev.

Elements are represented on the Periodic Table with chemical symbols.

Si

NaFe

OCH

e

The elements are arranged from left to right based on their atomic number.

The atomic number

comes from the number of protons present in

stable atoms of that

element.

Protons determine the element’s

identity!!

Here is the structure of the Periodic Table…

Columns

The columns on the Table are called groups.

The groups arenumbered from 1-18.

Elements within a group have very similar properties.Find this symbol on your Periodic Table:

GROUPS

Draw an arrow to show the direction of the groups on

the Periodic Table!

Which way to the groups go?

VERTICAL

Periods

The rows on the Periodic Table have meaning as

well.

The rows are called periods.

Left to right is the

(period)

Next to the periods, draw an arrow to show the

direction of the periods.

Across any period, the properties of

elements gradually change. For

example, as you move from left to right across the

table, atoms tend to become smaller in size, but larger in

mass.

HORIZONTALWhich way do the periods

go?

KEYNotice the box

at the top of the Periodic Table.

This is a key that tells us

what all of the symbols and

numbers mean.

14

Si28.068Silicon

Do the following on your key on your Periodic

Table.Atomic number -CircleName = chemical symbol = element symbol-Highlight

Atomic mass- Box

Elements are classified into three large groups on the Periodic Table. The groups are ……

Major Groups

MetalsOn the left and bottom

Non MetalsOn the Right

Metalloids in the Middle along the solid line

Application: Using the Periodic Table in your Journal

Color the three groups on your Periodic Table and make a

key.

Metals = blueNonmetals = greenMetalloids = yellow

No colore No Color

Blue 1-12 and bottom 2

Along jagged line Yellow

On Right Green 14-18

23 24Periodic Table

Starter: Complete sort with group

Application/Connection:

Notes

Sep 10, 2015 Sep 10, 2015

Exit: Name some other things are grouped together because of their similarities.

Periodic Table

Why is a system of organization important?

Practice

EQ: What are the patterns that are found on the periodic table?