Question

The state of matter called _ makes a fluorescent tube ( or neon sign bulb ) to glow.

Answer 1

Answer:

The state of matter called Plasma makes a fluorescent tube (or neon sign bulb) to glow.

Explanation:

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Answer 2

Answer:

The state of matter called plasma makes the fluorescent or neon bulb glow.

Explanation:

• Plasma is an ionised gas that consists of an approximately equal number of electrons and protons.
• A fluorescent tube consists of argon and mercury vapour.
• It has electrodes that are coated with alkaline earth oxide, which results in the release of electrons.
• When current flows through the tube, it interacts with the gas between the electrodes, which becomes ionised and emits ultraviolet radiation.