从周期表中或以下列表中选择您所制备的材料，以便获取标乐的建议方法
- hhydrogen
- hehelium
- lilithium
- bboron
- ccarbon
- nnitrogen
- ooxygen
- ffluorine
- neneon
- nasodium
- sisilicon
- pphosphorus
- ssulfur
- clchlorine
- arargon
- kpotassium
- cacalcium
- scscandium
- mnmanganese
- gagallium
- gegermanium
- asarsenic
- seselenium
- brbromine
- krkrypton
- rbrubidium
- srstrontium
- yyttrium
- tctechnetium
- inindium
- tetellurium
- iiodine
- xexenon
- cscaesium
- babarium
- la-lulanthanide
- hgmercury
- tlthallium
- popolonium
- atastatine
- rnradon
- frfrancium
- raradium
- ac-lractinide
- rfrutherfodum
- dbdubnium
- sgseaborgium
- bhbohrium
- hshassium
- mtmeitnerium
- dsdamstadium
- rgroentgenium
- uubununbium
- uutununtrium
- uuqununquadium
- uupununpentium
- uuhununhexium
- uusununseptum
- uuoununoctium
