Exploring Halogens

What are the physical properties of halogens?

• Halogens are solid at room temperature and have no distinct colors.

• Halogens are monatomic and have high melting points.

• Halogens are colorless gases at room temperature.

• Halogens are diatomic, have low melting and boiling points, and vary in color and state.

How do halogens exist in nature?

• Halogens exist only as single atoms in nature.

• Halogens exist in nature mainly as diatomic molecules and ionic compounds.

• Halogens are found exclusively in solid form.

• Halogens are primarily gaseous at room temperature.

What is the trend in boiling points among halogens?

• The boiling points of halogens decrease down the group.

• The boiling points of halogens remain constant down the group.

• The boiling points of halogens increase down the group.

• The boiling points of halogens are highest at the top of the group.

Which halogen is the most reactive?

• Iodine

• Chlorine

• Fluorine

• Bromine

How does electronegativity change down the halogen group?

• Electronegativity remains constant down the halogen group.

• Electronegativity fluctuates randomly down the halogen group.

• Electronegativity increases down the halogen group.

• Electronegativity decreases down the halogen group.

What is the common oxidation state of halogens in compounds?

• +7

• 0

• -1

• +1

How do halogens react with metals?

• Halogens only react with nonmetals.

• Halogens react with metals to form ionic compounds.

• Halogens react with metals to form covalent compounds.

• Halogens do not react with metals at all.

What is the color of chlorine gas at room temperature?

• red

• blue

• colorless

• greenish-yellow

Which halogen is a liquid at room temperature?

• Fluorine

• Bromine

• Iodine

• Chlorine

What is the trend in atomic size among halogens?

• Atomic size decreases down the group among halogens.

• Atomic size remains constant among halogens.

• Atomic size increases across the period among halogens.

• Atomic size increases down the group among halogens.