Edexcel IGCSE Chemistry - The Periodic Table, Group 1 & 7

Which is a solid at room temperature?

• Fluorine
• Chlorine
• Bromine
• Iodine

What happens to the reactivity as you go down group 1?

• Same
• Increase
• Decrease
• Yes

How many electrons are in the outer shell of halogens?

• 110
• 2
• 7
• 5

Which 3 Alkali Metals have a density lower than water

• Sodium, Potassium, Rubidium
• Lithium, Potassium, Rubidium
• Rubidium, Caesium, Francium
• Lithium, Sodium, Potassium

What group is Fluorine

• 1
• 5
• 6
• 7

What is the color of chlorine?

• Yellow
• Green
• Red
• Brown

State the electronic configuration for Fluorine

• 2,7
• 2,6
• 2,8
• 2,8,1

What is the electronic configuration of Calcium?

• 2,8,8,1
• 2,8,8,3
• 2,8,8,4
• 2,8,8,2

Which element is a halogen?

• Chlorine
• Potassium
• Gallium
• Titanium

Why is potassium more reactive than lithium

• It's valence electron is further from the nucleus
• It's got a larger atomic radius
• It has more protons
• It has a lower density