1.1 Metals and non metals

CHEMISTRY!

C2

Chapter 1

THE PERIODIC TABLE

ESTIMATED TIME - 2 WEEKS

Lesson 1.1; Metals & Non metals

Lesson objectives;

At the end of this lesson, you should be able to;

• Explain how elements are classified as metals and non metals

• Use patterns to classify an element as a metal or non metal

Watch this video to review the elements of the periodic table.

Use what you learned from the video to answer the next few questions.

​

Meet the elements!

They Might Be Giants - Meet the Elements (official TMBG video) 

Multiple Select

Plants, bugs, birds, fish, bacteria and men are mostly ______, _______, _______ and ________

• Carbon

• Hydrogen

• Nitrogen

• Oxygen

• Helium

Metals and non metals

In the periodic table, metals are on the left of the steeped side, non metals are on the right.

Chemistry: What is a metal? / Metallic Bonds

Watch this video and answer the next few questions;

Video - Metals & non metals

Multiple Choice

TRUE or FALSE;

Metals are shiny;

• TRUE

• FALSE

Multiple Choice

TRUE or FALSE;

Metals are Ductile;

• TRUE

• FALSE

Multiple Choice

TRUE or FALSE;

Metals are Malleable;

• TRUE

• FALSE

Multiple Choice

TRUE or FALSE;

Metals are Good conductors of heat;

• TRUE

• FALSE

Multiple Choice

TRUE or FALSE;

Metals are Good conductors of electricity;

• TRUE

• FALSE

Multiple Choice

Which of the following is not true of metals?

• They are good insulators

• They are malleable

• They are ductile

• They are malleable

• They are shiny

Multiple Choice

TRUE or FALSE;

Metals are made up of positive ions closely packed together.

• TRUE

• FALSE

Multiple Choice

Metals are shiny because

• Light energy falling on them is emitted by excited electrons

• The surface is soft

• Light energy is used to make soft electrons

• Energy is reflected on the surface

Multiple Choice

Metals are good conductors of heat because

• There's a free flow of electrons, which vibrate when heated, increasing temperature

• The material is a good conductor

• There are so many electrons that move away when heated

• When heated, the electrons shrink to create space for the heat to be transferred

Multiple Choice

Metals are good conductors of electricity because

• Free electrons in the metal can be repelled easily by new electrons entering the metal

• The material is a good conductor

• There are so many electrons that vibrate to conduct a current

• When the switch is connected, the electrons jump up and down to easily.

Multiple Select

Malleable means; (Select 3 answers)

• Ability to deform in response to an applied force

• Change shape when pressed / hammered

• Ability to be hammered without breaking / cracking

• Ability to reform / rejoin / regain shape after breaking / cracking

Multiple Choice

Metals are malleable because;

• the mobile sea of electrons shields the ions from each other

• the mobile sea of electrons opposes the applied force

• Metals are already strong to outside forces

• the mobile sea of electrons cancels out the applied force

Fill in the Blanks

Multiple Choice

Which of these is the most malleable metal?

• Copper

• Iron

• Gold

• Aluminium

Multiple Choice

"Ductile" means

• metals are like duct tape

• metals can be made into long thin wires

• Metals cannot break easily

• All of these

Multiple Choice

Metals are "ductile" because

• the mobile sea of electrons shields the ions from each other

• the mobile sea of electrons can be stretched

• metals are made to be used in wiring

Multiple Choice

Which of the following is the most ductile metal?

• Gold

• Copper

• Platinum

• Aluminum

Multiple Choice

True or false;

All metals are solids at room temperature

• TRUE

• FALSE

Fill in the Blanks

Multiple Choice

The only metal that is liquid at room temperature is;

• Francium

• Cesium

• Gallium

• Rubidium

• Mercury

Multiple Select

Other metals that melt close to room temperature are; (4 answers)

• Francium

• Cesium

• Gallium

• Rubidium

• Mercury

Individual work

Use pages 60 - 61 of your textbook to complete the rest of the questions

Multiple Choice

Page 60;

"Sonorous" means

• ..makes a ringing sound when hit

• breaks easily

• has low density

• is brittle

Multiple Choice

Page 60;

__________ are not sonorous

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are sonorous

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are brittle

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are heavy for their size

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are light for their size

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are dull

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are poor conductors of heat

• Metals

• Non metals

Multiple Choice

Page 60;

__________ are poor conductors of electricity

• Metals

• Non metals

Multiple Choice

Page 61;

Most metals have _____ melting points. They are usually solid at ____°C

• low, 20

• high, 20

• low, 40

• high, 40

Multiple Choice

Page 61;

Elements who's properties are between those of metals and non metals are known as

• metalloids

• metallica

• half metals

• near metals

Multiple Choice

Page 61;

Chemical properties describe .........

• things you can observe and measure

• chemical reactions

Multiple Choice

Page 61;

When non metals dissolve in water they form.........

• acidic solutions

• alkaline solutions

Multiple Select

Page 61;

Which of the following non metals dissolve in rain water to form acidic rain?

• Sulfur dioxide

• Nitrogen dioxide

• Carbon dioxide

• Sulfur monoxide

• Nitrogen monoxide

Multiple Choice

Page 61;

When metals dissolve in water they form.........

• acidic solutions

• alkaline solutions

Multiple Choice

Element A is glossy, and it’s a good conductor of heat. A is most likely a ..

• Metal

• Non metal

Multiple Choice

Element A is glossy and ductile. A is used as a conductor of electricity. Which of the following is the best description of A?

• Metal

• Non metal

• Metalloid

Multiple Choice

Google this; Which metal has the highest melting point?

• thallium

• osmium

• tungsten

• cobalt

Multiple Choice

Which of the following is true?

• Nonmetals are used to make pans, since they are good conductors of heat

• Metals are used in electrical cables as they are malleable, ductile and good conductors of electricity

• Metals are used to make pan handles as they are poor conductors of heat

• None of the above

Multiple Choice

Approximately what percentage of the periodic table is comprised of metals?

• 20 %

• 50 %

• 80 %

• 99 %