When he opened the door, a metallic sound echoed.

Alkali metals are very reactive chemically.

Metallic bonds are formed by ions floating in a sea of electrons.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

He used a metal detector to search for treasure on the beach.

He likes to take a walk in the park at dusk.

Alkaline earth metals are located in Group 2 of the periodic table.