CH C11 Periodic Table (Part 2)

The elements in Group 17 are also known as ...............................

Match the elements to their state of matter.

• gas

• iodine

• liquid

• bromine

• solid

• chlorine

Group 17 elements are diatomic. This means that when you write the chemical formula for chlorine, it should be written as​ (a)   , bromine should be written as ​ (b)   .

• Cl2
• Br2
• C
• B
• Cl
• Br

The main chemical reaction for Group 17 is the ​ (a)   ​ (b)   reaction. In the reaction, a ​ (c)   reactive​ halogen ​ (d)   a less reactive halogen from its halide solution.

• halogen
• displacement
• more
• displaces
• alkali metals
• neutralisation
• less
• kick out
• reacts

Fluorine is an element in Group 17. The chemical formula of fluorine should be written as ............................

Classify whether there is reaction.

Groups:

(a) Will react

,

(b) Will not react

• Mix potassium chloride with astatine

• Mix chlorine with potassium fluoride

• Mix iodine with potassium bromide

• Mix chlorine with potassium bromide

• Mix bromine with potassium iodide

Match the elements in Group 17 to their colours.

• pale yellow

• fluorine

• green yellow

• bromine

• purple black

• chlorine

• black

• astatine

• red-brown

• iodine

What are the products formed when chlorine reacts with potassium bromide?

• chlorine

• bromine

• potassium bromide

• potassium chloride

• There is no reaction

The most reactive halogen is ​ (a)   , followed by ​ (b)   ​ (c)   ​ (d)   ​ and (e)   .

• fluorine
• chlorine
• bromine
• iodine
• astatine
• sodium
• potassium

Chlorine reacts with potassium bromide. This is because ​ chlorine is ​ (a)   than​ bromine. Hence, ​ ​ (b)   ​ (c)   ​ (d)   from​ (e)   .

• chlorine
• bromine
• displaces
• more reactive
• potassium bromide
• neutralises
• potassium chloride
• less reactive