123456789101112KeywordnitrogenFrequency#3066Strokes12ReadingsdànMnemonic气 (gas) gives the meaning and 炎 the sound.Stroke orderComposed of气gas炎flameUsed in vocabulary氮dànnitrogen (chemistry)氮气dànqìnitrogen氮氧化物dànyǎnghuàwùnitrogen oxide液氮yèdànliquid nitrogen固氮gùdànnitrogen fixation二氧化氮èryǎnghuàdànnitrogen dioxide一氧化氮yīyǎnghuàdànnitric oxide一氧化二氮yīyǎnghuà'èrdànnitrous oxide N2O; laughing gas