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WorksheetsCharacteristic of Group 18
Total questions: 15
Worksheet time: 9mins
What are the elements in group 18?
Boron (B)
Helium (He)
Argon (Ar)
Magnesium (Mg)
True or False
Elements from group 18 is extremely reactive
True
False
Group 18 is also known as _____ ____
(a)
What are physical properties of Group 18?
Has colour
Colourless
Cannot conduct heat and electricity
Can conduct heat and electricity
Arrange the elements below from most to least according to atomic size
Helium (He), Xenon (Xe), Neon (Ne)
Neon, Xenon, Helium
Xenon, Neon, Helium
Neon, Helium, Xenon
Helium, Neon, Xenon
True or False
Density decreases when going up the group because relative atomic mass decrease
True
False
Which of the following is correct spelling?
van der Waal's force
van der Wall's force
Van Der Waal's force
Waal van der's force
How can you tell an element's position in the periodic table without referencing a periodic table?
Group: Number of shells
Period: Number of valance electrons
Group: Proton number
Period: Number of shells
Group: Number of valance electrons
Period: Number of shells
Group: Number of valance electrons
Period: Proton number
The diagram show an element called Rubidium (Rb)
State the group and period of Rubidium (Rb)
Group: 2
Period: 3
Group: 1
Period: 5
Group: 18
Period: 6
Group: 7
Period: 2
What type of substances are in Group 18?
Metal
Semi-metal
Non-metal
True or False
Vertical row in periodic table is called a Group, while horizontal row is called Period
True
False
True or False
All element in Group 18 has a high boiling point
True
False
Why is the atomic size of elements increase when going down the group?
Density increase when going down the group
Number of shell increase when going down the group
van der Waal's increase when going down the group
Elements of Group 18 is a monatomic gas
When going down the group 18, does the boiling point increase or decrease? Why?
Increase, the atomic size increase results van der Waal's force to be stronger. Hence, more heat energy is needed to overcome the force
Decrease, the atomic size decrease results van der Waal's force to be weaker. Hence, less heat energy is needed to overcome the force
Increase, the atomic size decrease results van der Waal's force to be weaker. Hence, less heat energy is needed to overcome the force
Decrease, the atomic size increase results van der Waal's force to be stronger. Hence, more heat energy is needed to overcome the force
Below are two elements from group 18
Xenon (Xe) and Krypton (Kr)
Which of the following elements has a higher density?
Xenon (Xe)
Krypton (Kr)
