Which of these devices does NOT contain a magnet or electromagnet? a doorbell
an electric motor
a light bulb
a telephone

A light bulb don’t have magnet

C. A lightbulb

This is because a light bulb uses a filament to send a current to turns electricity into light. Because filaments are mostly made of tungsten, the resistance of the filament gets so hot that it heats the light bulb.

This process does not need a magnet or electromagnet like the doorbell, electric motor, and telephones need magnets.

This is what i found on google “lithium and sulfide can react together to form litium sulfide(li2s). when lithium sulfide hydrolyses(breaks down) in air, it releases hydrogen sulfide which is characteristized by a rotten egg odor.” i hope this you for what your looking for