Question

Which group contains elements that have the following characteristics:

1) At least one is a metalloid.
2) At least one forms an ion with a charge of -2.
3) At least one is a gas.
4) At least one is a halogen.

Answer 1

1)

Step-by-step explanation:

the answer to you question Is 1)

Answer 2

B. Chlorine, Sulfur and Silicon

Step-by-step explanation:

Chlorine is a halogen and gas. Sulfur forms an ion with a -2 charge in ionic bonds. Silicon is a well-known metalloid.