Halogens - Group 7

Which halogen is the most reactive?

• Fluorine

• Chlorine

• Bromine

• Iodine

Describe the reactivity of Group 7 (halogens) elements as you go down the group?

• Reactivity remains constant as you go down the group.
• Reactivity decreases as you go down the group.
• Reactivity increases as you go down the group.
• Reactivity is not affected by the group position.

How many electrons to halogens have in their outer shell?

• 10
• 7
• 8
• 5

Complete the following equation: Chlorine + Potassium Bromide -->

• Potassium Chloride + Bromine

• Chlorine + Potassium Bromide

• No reaction

Which halogen is the least reactive?

• Fluorine

• Chlorine

• Bromine

• Iodine

Complete the following equation: Iodine + Potassium Bromide -->

• Potassium Iodine + Bromine

• Iodine + Potassium Bromide

• No reaction

Complete the following equation: Bromine + Potassium Iodide -->

• Potassium Iodine + Bromine

• Iodine + Potassium Bromide

• No reaction

Complete the following equation: Chlorine + Potassium Iodide -->

• Potassium Iodine + Chlorine

• Iodine + Potassium Chloride

• No reaction

Complete the following equation: Iodine + Potassium Iodide -->

• Potassium Iodine + Bromine

• Iodine + Potassium Chloride

• No reaction

What happens when fluorine reacts with sodium?

• They form sodium fluoride.

• They form sodium chlorate.

• No reaction occurs.

• They form sodium and fluorine gas.