Definition

A soft, silvery-white metal that is highly toxic and used in various applications like photocells and infrared detectors. It is found in small amounts in certain ores and has a chemical symbol of Tl.

Example

Thallium is often used in the production of low-melting glass and in some electronic devices.

Conversation

Have you ever heard of the element thallium?

Yeah, I've read that it's quite toxic and used in some electronics.

Exactly! It's interesting how it was once used in pesticides too.

I know, right? It's crazy how something so dangerous can have multiple applications.

Synonyms & Antonyms

Root Explanation

Thallium comes from the Greek word "thallos" (meaning a green shoot or twig) and the suffix "-ium" (used in chemistry to denote metallic elements). The name reflects the green spectral line observed in its spectrum, which is reminiscent of new plant growth.

Memory Tip

Imagine a green shoot or twig ('thallos') representing the color associated with thallium, which is a metal that has a green spectral line.

Visually Confused Words