123456789101112131415161718KeywordradiumFrequency#4148Strokes18ReadingsléiMnemonic钅 (metal) gives the meaning and 雷 the sound.Stroke orderComposed of钅gold雷thunderUsed in vocabulary镭léiradium (chemistry)镭射léishèlaser (loanword); Taiwanese term for 激光 (jīguāng)