Definition

A group of 15 chemical elements in the periodic table that have similar properties, starting with cerium and ending with lutetium.

Example

The lanthanides are often used in various high-tech applications, including electronics and renewable energy technologies.

Conversation

Have you ever heard of a lanthanide?

Yeah, I think they're part of the rare-earth elements, right?

Exactly! They start with cerium and go all the way to lutetium.

That's cool! I love learning about different elements in chemistry.

Synonyms & Antonyms

Root Explanation

Lanthanide → It is formed from "lanthan" (from Greek "lanthanein", meaning to lie hidden) and the suffix "-ide" (used in chemistry to denote a class of elements). The term "lanthanide" refers to the series of elements that are chemically similar and are often found together, lying hidden in the periodic table.

Memory Tip

Think of 'lanthan' meaning 'to lie hidden' — this helps you remember that lanthanides are elements that are often found together and are not always visible in the periodic table.

Visually Confused Words