The Periodic Table BY: BRIANNA SHIELDS DO NOW 1. What element has 7 protons? 2. How many neutrons does Hydrogen have? 3. How many electrons does Neon.

The Periodic Table

BY: BRIANNA SHIELDS

DO NOW

• 1. What element has 7 protons?

• 2. How many neutrons does Hydrogen have?

• 3. How many electrons does Neon have?

GOAL

• To construct Bohr models

• To use the periodic table and become familiar with its elements

Review: Fill in the table

Particle Charge Mass Location Chart

1. Proton

2. Electron

3. Neutron

Review: Atoms

• How many protons, neutrons and electrons?

How many p, n, e?

How many p, n, e?

How many p, n, e?

How many p, n, e?

Steps to creating a Bohr Model

1. Create a key: #p, #n, # e

2. Draw the nucleus w/ several rings

3. Put P and N in nucleus

4. Put E into orbits from inside to outside

1. 1st level holds 2 electrons

2. 2nd holds 8

3. 3rd holds 18

4. 4th holds 32

maximum numbers of e’s that each level can hold

Lithium

3P 4N

KEY

#p= 3 #n= 4 #e= 3

Bohr Model Example

6

6

6

Bohr Model Example

2

2

2

Bohr Model Example

Bohr Model Example

• Make a Bohr model of Magnesium. Don’t forget to make a key.

Magnesium

12P

12N

KEY

#p= 12 #n= 12 #e= 12

Draw the following Bohr Models:

• Random students will be chosen to draw theirs on the board (don’t forget to make a key)• Neon

• Hydrogen

• Potassium

Periodic Table Websites

• ACS Periodic Table

• http://www.webelements.com/

The Periodic Table- Video

What is the name for the element group in the first column of the periodic table?

What is the name for the element group in the last column of the periodic table?

The Periodic Table- Video

QuickTime™ and aSorenson Video 3 decompressorare needed to see this picture.

Trends in the Periodic Table

• ACS Periodic Table

• Chemistry: WebElements Periodic Table

• A Periodic Table of the Elements at Los Alamo...

• Chemical Elements.com - An Interactive Period...

The Periodic Table

You should be coloring in and labeling your periodic table, as we take notes

Periodic Table Trends

• Periodic Table Trends

• 1. Atomic number increases left to right, top to bottom

Periodic Table Trends

• Periodic Table Trends

• 2. Groups / Families = Vertical Columns

• Gp 1= Alkali metals

• Gp 2= Alkaline earth metals

• Gp 17= halogens

• Gp 18= noble gases

Group 1= Alkali Metals

Group 2= Alkaline Earth Metals

Gp 17= Halogens

Gp 18= Noble Gases

Periodic Table Trends

• Periodic Table Trends

• 3. Periods = horizontal rows

Periodic Table Trends

• Periodic Table Trends

• 4. Metalloids= along stair step line (metal and non-metal characteristics)

Periodic Table Trends

• Periodic Table Trends

• 5. Metals= everything to left of stair step line

Periodic Table Trends

• Periodic Table Trends

• 5. Metals= everything to left of stair step line

• A. Usually have high melting points.

• B. Shiny when cut.

• C. Mostly tough, strong, malleable and ductile.

• D. Good conductors of heat.

• E. Good conductors of electricity.

• F. Form alloys

Periodic Table Trends

• Periodic Table Trends

• 6. Non-metals = everything to right of stair step line (most common)

Periodic Table Trends

• Periodic Table Trends

• 6. Non-Metals

• A. dull• B. poor conductors• C. brittle• D. lower densities• E. lower melting points• F. some are solids, some liquids,

and some gases

Periodic Table Trends

• Periodic Table Trends

• 7. Transition elements- elements in gps 3-12 with unusual properties

Describe the locations of the elements

• Ex: Neon is a non-metal located in period 2, gp 18 (noble gases)

• Sodium• A metal located in period 3, gp 1, the • Nickel• A transition metal located in period 4, gp 10• Fluorine• A non-metal in period 2, grp 17 (halogens)

Describe the locations of the elements

• Ex: Neon is a non-metal located in period 2, gp 18 (noble gases)

• Aluminum• A metalloid in period 3, group 13• Hydrogen• A non-metal located in period 1, gp 1

How many p, e and n?

K19

39.10

Chemical Symbol

Atomic Number

Atomic Mass

How many p, e and n?

Cu29

63.55

Review: Bohr Models

• Make a Bohr Model of Lithium

Lithium

3P 4N

KEY

#p= 3 #n= 4 #e= 3

Review: Bohr Models

• Make a Bohr Model of Silicon

Silicon

14P

14N

KEY

#p= 14 #n= 14 #e= 14

Do you know your elements yet??

• Be• I• Sn• Ag• C

Do you know your elements yet??

• He• U• Ba• Mg• K

Do you know your elements yet??

• Ne• P• Cl• Pt• Au

Do you know your elements yet??

• Hg• Rn• Co• Mn• Cu

Do you know your elements yet??

• As• Zn• F• Na• Si• P

Periodic Table Review Game: Website

• Periodic Table Games