Monday, May 13th Entry Task

Decide if the following statements are true or false. If they are true write them down as is, if they are false write down a correct statement

1. Groups on the periodic table are horizontal.

2. As you go from right to left on the periodic table the number of protons in each atom increase.

3. Sodium and Francium are in the same period.

4. Bromine is heavier than oxygen.

Schedule:• Understand the

periodic table notes

Homework:• Complete tasks not

completed in class

Objective: I can understand that the periodic table is a map of elements organized by properties

Things to know before learning characteristics of groups

Reactive- how likely an element is to undergo a chemical change

Rule of 8• Elements like to have 8 electrons orbiting in the outside electron shell• Group numbers can tell you how many electrons are in the outer shell

– Group 1- has 1– Group 2- has 2– Group 13- has 3– Group 14- has 4– Group 15-has 5 – Group 16- has 6– group 17- has 7– group 18- has 8

• If a group has less than 4 they give up their electrons- making them + ions• If a group has more than 4 they take electrons- making them – ions• If they have 4 they can do either• What they do with their electrons determines what other elements they bond with

– Oxygen has 6 electrons and Hydrogen has 1 electron– H2 O is two hydrogen (2 electrons) and one oxygen (6 electrons) 2 electrons+6 electrons

is 8! IT’S A HAPPY MOLECULE!

Metals

• Most elements are metals

• Elements that conduct electricity and heat well and have a shiny appearance

• Shaped easily by pounding, bending or being drawn into a long wire

• Solid at room temperature-except for mercury which is a liquid

Alkali metals

• Metals in group 1 of the periodic table• Very reactive• React with air

– When sodium and potassium are exposed to air they react rapidly with oxygen and water vapor

• Usually lose en electron when bonding with other elements

• Ions Na+ and K+ are essential for functioning living cells

Alkaline Earth Metals

• Group 2

• Less reactive than alkali metals but still more reactive than others

• Lost two electrons when bonding with other elements

• Calcium ions are an essential part of your diet

• Magnesium is a strong but light metal

Transition Metals

• Groups 3-12• Less reactive than other metals but can have some (very

little bit) reactivity• Metals of the earliest known elements

– Copper, gold, silver and iron– Gold and silver are easily shaped

• Money is made from these– dine-and quarters are made of copper and nickel– Pennies are made of zinc with a coating of copper

• Found in foods you eat• Two or more can be combined to form an alloy

– Alloy can be stronger and less likely to corrode– Brass is an alloy of copper and zinc

Rare Earth Elements (Lanthanides)

• Series 58-71• Called rare earth elements because scientists

once thought that these elements were available only in tiny amounts on Earth’s crust

• Not so rare- just hard to isolate in it’s pure form• Europium is used as a coating for some TV

tubes• Praseodymium is used in welding helmets and

protects from the harmful radiation of welding.

Actinides

• Series 90-103

• Radioactive elements

• Very reactive

• Thorium and uranium are the only ones found in Earth’s crust in larger quantities

• Electron sharing is random- no trend

Nonmetals and Metalloids

• Nonmetals- – elements on the right of the periodic table– Properties are opposite of metals– Their properties vary more from element to element than the

properties of metals– All are gas in their natural state at room temperature except for

bromine which is a liquid– Poor conductors of heat and electric current

• Metalloids-– Properties of both metals and nonmetals– Zigzag line that separates metals from nonmetals– Semiconductors-special materials that conduct electricity under

some conditions and not under others

Chalcogens

• Group 16

• Also known as the oxygen family

• Take 2 electrons when bonding with another element

• One is radioactive

• Oxygen is what we are most made up of

• Sulfur smells like rotten egg

Halogens

• Group 17• Greek – means forming salts• Very reactive• Non metals• Easily form compounds called salts with many

metals• Often used to kill harmful microorganisms• Chlorine• Iodine used in hospitals

Noble Gases

• Group 18• Do not give up or take any electrons• They are considered noble, or inert because

they almost never react with other elements• Argon gas makes up 1% of the atmosphere• Colorful lights are made by passing an electric

current through tubes filled with neon, krypton, xenon or argon gas

Getting to know the periodic table project

• Today you will complete #6-11 on your periodic table.

• MAKE SURE YOU INCLUDE A KEY AT THE BOTTOM OF YOUR TABLE!!!!

Tuesday, May 14th Entry Task

Write down three statements to support each of the following.

1. Metals2. Metalloid3. Nonmetals

Homework:• Questions 1-6 page 160• Periodic table Quiz

tomorrow

Objective: I can understand that the periodic table is a map of the elements organized by properties

Schedule:• Finish Periodic Table

Please have on desk:• 5.3 RSG

Getting to know the periodic table project

• Today you will finish the project

• You can find information on radioactive elements in section 5.3

• Make sure your name is on this.

Wednesday, May 15th Entry Task

1. List some specific properties that atoms have.

2. Why do we need to know properties?

3. How do properties help organize the periodic table? Explain.

Schedule:• Periodic Table Quiz• Alien Periodic table

Homework:• Periodic Table

crossword

Objective: I can understand how to organize elements into a periodic table based on properties

Please have on desk:• Questions 1-6 from

page 160

Analysis of Periodic Table ProjectAnswer the following questions on a piece of paper to turn in.1. What does the number above the symbol for each element

represent?2. The atom of what element is in Period 4, Group 13?3. What do the elements on the far right of the table have in

common?4. How many electrons does a neutral chlorine (Cl) atom contain?5. If a fluorine (F) atom gains one electron to form a negative ion,

how many electrons would bromine (Br) gain to form a negative ion?

6. How does the structure of an atom determine its place in the periodic table?

7. Cadmium occupies the square directly above mercury on the periodic table. Is a cadmium atom larger or smaller than a mercury atom?

8. Which elements do you think you might find in electronic devices?

Thursday, May 16th Entry Task 1. Write out the Big idea for the

chapter2. Write out each key concept

for each section in the chapter3. Write down 1 important thing

you remember learning from each section

4. Write down 1 thing that you need to study some more from each section.

Schedule:• Chapter 5 review

Homework:• Chapter 5 Review• Periodic Table

Crossword

Objective: •I can understand important terms and concepts about elements and the periodic table

Please have on desk:

• Periodic Table

Chapter 5 review

• Page 163– 1-35

• If multiple choice, write out the questions and the answer

• If a chart or diagram or any drawing type, DO IT!

• Any other, use full sentences, IQIA

Friday, May 17th Entry Task

Identify 3 questions from your review that you were unsure about. Be ready to ask them to either a peer or the teacher to try to figure out the right answer

Schedule:• Element Bingo

Homework:Study for chapter 5 test

on MONDAY

Objective: I can review information about atoms and the periodic table

Please have on desk:• Chapter 5 review• Periodic table crossword