亜砒酸[ahisan] arsenious acid
砒素[hiso] arsenic (As)
砒酸[hisan] arsenic acid
ガリウム砒素半導体[gariumuhisohandoutai] gallium arsenide semiconductor
亜砒酸塩[ahisanen] arsenite

砒化水素[hikasuiso] arsine
砒素剤[hisozai] arsenicals (drugs containing arsenic)
ガリウム砒素[gariumuhiso] gallium arsenide (GaAs)
砒化ガリウム[hikagariumu] gallium arsenide (GaAs)
酸化砒素[sankahiso] arsenic trioxide

バイオ素子[baiososhi] bio-device
弗素[fusso] fluorine (F)
一酸化炭素[issankatanso] carbon monoxide
栄養素[eiyouso] nutrient
塩化水素[enkasuiso] hydrogen chloride

塩素[enso] chlorine (Cl)
塩素酸[ensosan] chloric acid
塩素酸塩[ensosanen] chlorate
音楽の素質[ongakunososhitsu] aptitude for music
音素[onso] phoneme