鑭系元素

1. • lanthanoid (rare earth series), namely: lanthanum La57 镧 lán, cerium Ce58 铈 shì, praseodymium Pr59 镨 pǔ, neodymium Nd60 钕 nǚ, promethium Pm61 钷 pǒ, samarium Sm62 钐 shān, europium Eu63 铕 yǒu, gadolinium Gd64 钆 gá, terbium Tb65 铽 tè, dysprosium Dy66 镝 dī, holmium Ho67 钬 huǒ, erbium Er68 铒 ěr, thulium Tm69 铥 diū, ytterbium Yb70 镱 yì, lutetium Lu71 镥 lǔ

Character by character

• 鑭(lán)lanthanum
• 系(xì)connect
• 元(yuán)surname Yuan
• 素(sù)raw silk