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Slide 1:
Diapositive
Chemistry
Lower Secondary (Key Stage 3)
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group 7
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
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 - Diapositive
Slide 8 - Diapositive
Slide 9 - Diapositive
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 - Diapositive
Slide 15 - Diapositive
Slide 16 - Diapositive
Slide 17 - Diapositive
Slide 18 - Diapositive
Slide 19 - Diapositive
Sodium + Chlorine
chloride
Potassium + Fluorine
Potassium
Lithium +
Lithium iodide
Potassium +
Potassium bromide
Sodium
fluoride
Iodine
Bromine
Slide 20 - Question de remorquage
Slide 21 - Diapositive
This is an IONIC bond
Slide 22 - Diapositive
Slide 23 - Diapositive
Slide 24 - Diapositive
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 - Diapositive
Slide 43 - Diapositive
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 - Sondage
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 - Sondage
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 - Sondage
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