24.5.1 Halogens

Question 1

Which of the following is not a halogen?

Answer 1

Radon

Question 2

The halogens all form what type of molecules?

Answer 2

Diatomic

Question 3

Why does fluorine have a smaller electron affinity than chlorine?

Answer 3

In fluorine, there is repulsion between the lone pairs of electrons.

Question 4

Which halogen is most reactive?

Answer 4

Fluorine

Question 5

Which of the following is not a property of the halogens?

Answer 5

Valence configuration of ns2np3

Question 6

All the halogens except for fluorine have positive oxidation states, while fluorine has no known positive oxidation states. Why is fluorine different?

Answer 6

The electronegativity of fluorine is 4.0.

Question 7

What important essential nutrient is found in kelp?

Answer 7

Iodine

Question 8

How many elements are stronger oxidants than fluorine?

Answer 8

0

Question 9

How are bromine and iodine usually produced?

Answer 9

By treating salt solutions with chlorine.

Question 10

Teflon is a polymer formed of carbon and what halogen?

Answer 10

Fluorine