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Slide 1: Slide
ChemistryLower Secondary (Key Stage 3)

This lesson contains 46 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 40 min

Items in this lesson

group 7

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

What charge do compounds have, overall?
A
Positive charge
B
Negative charge
C
No overall charge

Slide 4 - Quiz

What does the word ‘ductile’ mean?
A
Able to be drawn into wires
B
Hard to melt
C
Easily broken

Slide 5 - Quiz

What do you find in the nucleus of an atom?
A
Molecules
B
Electrons
C
Neutrons
D
Protons

Slide 6 - Quiz

Slide 7 - Slide

Slide 8 - Slide

Slide 9 - Slide

What are the melting and boiling points of iodine?
A
Melting point: -219.6°C, Boiling point: -188.1°C
B
Melting point: -101.5°C, Boiling point: -34.04°C
C
Melting point: -7.2°C, Boiling point: 58.8°C
D
Melting point: 113.7°C, Boiling point: 184.3°C

Slide 10 - Quiz

What are the melting and boiling points of bromine?
A
Melting point: -7.2°C, Boiling point: 58.8°C
B
Melting point: -219.6°C, Boiling point: -188.1°C
C
Melting point: -101.5°C, Boiling point: -34.6°C
D
Melting point: -101.5°C, Boiling point: -34.04°C

Slide 11 - Quiz

What are the melting and boiling points of chlorine?
A
Melting point: -7.2°C, Boiling point: -34.6°C
B
Melting point: -101.5°C, Boiling point: -34.04°C
C
Melting point: -219.6°C, Boiling point: -188.1°C
D
Melting point: -7.2°C, Boiling point: -34.04°C

Slide 12 - Quiz

What are the melting and boiling points of fluorine?
A
Melting point: -219.6°C, Boiling point: -188.1°C
B
Melting point: -7.2°C, Boiling point: -34.04°C
C
Melting point: -101.5°C, Boiling point: -34.6°C
D
Melting point: -101.5°C, Boiling point: -34.04°C

Slide 13 - Quiz

Slide 14 - Slide

Slide 15 - Slide

Slide 16 - Slide

Slide 17 - Slide

Slide 18 - Slide

Slide 19 - Slide

Sodium + Chlorine 
chloride
Potassium + Fluorine 
Potassium
Lithium + 
Lithium iodide
Potassium +
Potassium bromide
Sodium
fluoride
Iodine
Bromine

Slide 20 - Drag question

Slide 21 - Slide

This is an IONIC bond

Slide 22 - Slide

Slide 23 - Slide

Slide 24 - Slide

What type of bond is formed between group 7 and group 1 elements?
A
covalent
B
polar
C
metallic
D
ionic

Slide 25 - Quiz

What is the charge of elements in group 1?
A
+2
B
-2
C
-1
D
+1

Slide 26 - Quiz

What is the charge of elements in group 7?
A
-1
B
+2
C
+1
D
-2

Slide 27 - Quiz

What compound is formed by potassium and iodine?
A
Potassium iodide is formed
B
Potassium oxide is formed
C
Potassium chloride is formed
D
Potassium fluoride is formed

Slide 28 - Quiz

What compound is formed by cesium and bromine?
A
Cesium oxide is formed
B
Cesium fluoride is formed
C
Cesium bromide is formed
D
Cesium chloride is formed

Slide 29 - Quiz

Are potassium bromide molecules neutral?
A
No, they are positively charged
B
No, they are negatively charged
C
No, they are partially charged
D
Yes, they are neutral

Slide 30 - Quiz

What is the charge of potassium bromide?
A
+1 and -1
B
+1 and +1
C
-1 and +1
D
-1 and -1

Slide 31 - Quiz

Devise the formula for the compound formed.
A
CsI
B
CsI2
C
Cs2I
D
CsO

Slide 32 - Quiz

Create the word equation for the reaction of caesium and iodine.
A
Caesium + Iodine -> Caesium Iodate
B
Caesium + Iodine -> Caesium Iodine
C
Caesium + Iodine -> Caesium Iodate
D
Caesium + Iodine -> Caesium Iodide

Slide 33 - Quiz

Why do group 7 elements form -1 charges when they bond?
A
They share one electron
B
They lose one electron
C
They gain one electron
D
They gain two electrons

Slide 34 - Quiz

What is the trend in reactivity down group 7?
A
Reactivity fluctuates
B
Reactivity increases
C
Reactivity decreases
D
Reactivity remains constant

Slide 35 - Quiz

What is the appearance of chlorine at room temperature?
A
Yellow solid
B
Red liquid
C
Blue gas
D
Greenish-yellow gas

Slide 36 - Quiz

Devise the formula for the compound formed.
A
Cs2I
B
CesiumIodine
C
CsI2
D
CsI

Slide 37 - Quiz

Create the word equation for the reaction of caesium and iodine.
A
Caesium + Iodate -> Caesium Iodine
B
Caesium + Iodide -> Caesium Iodine
C
Caesium + Iodine -> Caesium Iodate
D
Caesium + Iodine -> Caesium Iodide

Slide 38 - Quiz

Why do group 7 elements form -1 charges when they bond?
A
They share electrons
B
They have a full outer shell
C
They gain an electron to achieve a full outer shell
D
They lose an electron

Slide 39 - Quiz

What is the trend in reactivity down group 7?
A
Remains constant
B
Reactivity decreases
C
No trend in reactivity
D
Reactivity increases

Slide 40 - Quiz

What is the appearance of chlorine at room temperature?
A
Red liquid
B
Colorless gas
C
Greenish-yellow gas
D
Blue solid

Slide 41 - Quiz

Slide 42 - Slide

Slide 43 - Slide

Understanding halogens is crucial in chemistry.
Yes, it's important for chemical reactions.
No, it's not relevant to everyday life.
I'm not sure, can you explain more?
It might be important, but I'm indifferent.

Slide 44 - Poll

Knowing the difference between ionic and covalent bonds is fundamental in chemistry.
Absolutely, it affects how compounds form.
Not really, as long as compounds work.
I need more information to decide.
It's not important in my opinion.

Slide 45 - Poll

Understanding reactivity is essential for predicting chemical behavior.
Yes, it helps in understanding chemical reactions.
No, it's not necessary for everyday life.
I'm not sure, can you explain more?
It might be useful, but I'm indifferent.

Slide 46 - Poll