4E5N Periodic Table (Group 17)

What is the name given to elements in Group 17?

Order the following halogens according to reactivity.

(1 is the least reactive, 4 is the most reactive)

• iodine

• bromine

• chlorine

• fluorine

Match the following halogens to their images.

• iodine

• 
• chlorine

• 
• bromine

• 
• fluorine

• 

Which of the following elements are able to displace bromine from sodium bromide?

Choose all that apply.

• fluorine

• chlorine

• iodine

• astatine

Organize these options into the right categories

Groups:

(a) No reaction

,

(b) Displacement occurs

• chlorine + lithium fluoride

• iodine + sodium fluoride

• chlorine + potassium iodide

• iodine + sodium chloride

• bromine + sodium iodide

• fluorine + potassium chloride

• chlorine + lithium iodide

• chlorine + sodium bromide

• bromine + magnesium chloride

• astatine + sodium chloride

• fluorine + sodium bromide

• iodine + potassium bromide

Answer explanation

A more reactive halogen always displaces a less reactive halogen from its halide solution.

What are the products formed in the displacement reaction between chlorine and magnesium bromide? Choose all that apply.

• magnesium

• bromine solution

• magnesium chloride

• chlorine gas

​ Balance the following equation:

(a)   NaBr + ​ (b)   F₂ -> ​ (c)   NaF + ​ (d)   Br₂

• 1
• 2
• 3
• 4

​ Balance the following equation:

(a)   Br₂ + ​ (b)   KI -> ​ (c)   KBr + ​ (d)   I₂

• 1
• 2
• 3
• 4

​ Balance the following equation:

(a)   Cl₂ + ​ (b)   MgI₂ -> ​ (c)   MgCl₂ + ​ (d)   I₂

• 1
• 2
• 3
• 4

Cl₂ + 2NaBr -> 2NaCl + Br₂

In this reaction,​ (a)   displaced​ (b)   from ​ (c)  

• chlorine
• bromine
• sodium bromide
• bromide
• chloride
• sodium chloride