group 7 periodic table

what is the name given to the elements in group 7 of the periodic table

• noble gasses

• halogens

• alkali metals

• hellogens

Which is the most reactive element in Group 7?

• Flourine

• chlorine

• bromine

• astatine

Which halogen is a grey solid that turns into a purple gas when heated, and is used to sterilise wounds?

• chlorine

• iodine

• bromine

which of the following elements are NOT in group 7? (multiple)

• chlorine

• bromine

• francium

• iodine

• radium

Which of these is a use for chlorine?

• in plastics

• as a food additive

• in cosmetics

What happens to the melting and boiling points of the halogens as you go down the group?

• they increase

• they decrease

• they stay the same

Which halogen is a liquid at room temperature?

• chlorine

• bromine

• iodine

What happens when chlorine solution is added to a solution of sodium bromide?

• no reaction

• an explosion

• bromine is produced

What will happen when iodine solution is added to a solution of potassium bromide?

• no reaction

• Solid iodine is produced

• Bromine is produced

Which is the correct ionic equation for the reaction of chlorine with potassium bromide?

• Br2 + 2Cl- → Cl2 + 2Br-

• Cl2 + 2Br- → Br2 + 2Cl-

• Cl2 + Br- → Br2 + Cl-