radioactive emoji

Radioactive hazard symbol — nuclear radiation, radioactive materials, and atomic warnings.

Unicode data

Character	☢️
Codepoint	U+2622 U+FE0F
Unicode name	RADIOACTIVE
Added in	Unicode 1.0
Category	Symbols
Subcategory	warning
HTML entity	☢
Shortcode	:radioactive_sign:

Platform support

Apple / iOS✓ Supported

Google / Android✓ Supported

Twitter / X (Twemoji)✓ Supported

Platform designs vary — the same codepoint renders differently on iOS, Android, and web. Twemoji is the open-source reference used on this site (CC BY 4.0).