# sodium

> English word · Noun · IPA /ˈsəʊ.dɪəm/ · frequency rank #8,729

## Definitions
1. The chemical element (symbol Na) with an atomic number of 11 and atomic weight of 22.990. It is a soft, waxy, silvery, reactive alkali metal that is never found unbound in nature.
2. Employing sodium.

## Etymology
Coined by British chemist Humphry Davy in 1808, from soda + -ium.

## Easily confused with
- **Sodom** (https://plainspell.com/en/vs/sodium-vs-sodom)
- **stadium** (https://plainspell.com/en/vs/sodium-vs-stadium)
- **sadism** (https://plainspell.com/en/vs/sadism-vs-sodium)

## Common misspellings (8)
`osdium`, `sdoium`, `soddium`, `sodimu`, `sodiumm`, `soduim`, `soidum`, `ssodium`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sodium