Halogens and Noble Gases Quiz

Which of the following halogens is a yellow gas and highly reactive?

• Chlorine

• Iodine

• Fluorine

• Bromine

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

• They decrease

• They remain constant

• They fluctuate

• They increase

Why does the reactivity of halogens decrease as you go down the group?

• The atomic mass decreases

• The outer shell gets closer to the nucleus

• The outer shell gets further from the nucleus

• The number of protons decreases

What is formed when a halogen gains an electron to become a 1- ion?

• Cation

• Anion

• Halogen

• Halide

Which of the following is an example of a halide?

• Chloride

• Iodine

• Bromine

• Fluorine

In a displacement reaction, which halogen will displace bromine from a compound?

• Tennessine

• Chlorine

• Astatine

• Iodine

Which halogen is the least reactive?

• Fluorine

• Iodine

• Chlorine

• Bromine

What is a key characteristic of noble gases?

• They form diatomic molecules

• They are flammable

• They are colorless and inert

• They are highly reactive

Why are noble gases considered inert?

• They are metallic

• They have incomplete outer shells

• They have full outer shells

• They are highly electronegative

What happens to the boiling points of noble gases as you move down the group?

• They decrease

• They remain constant

• They increase

• They fluctuate