硫 - S, 氯 - Cl, 鉀 - K, 鈣 - Ca, 鈧 - Sc, 錳 - Mn, 鐵 - Fe, 鎳 - Ni, 銅 - Cu, 砷 - As, 硒 - Se, 溴 - Br, 氪 - Kr,

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