Tantalum yog ib qho nyuaj, hnyav hlau, uas muaj tshuaj lom neeg zoo ib yam li niobium.Zoo li qhov no, nws yooj yim tsim cov txheej txheem oxide tiv thaiv, uas ua rau nws tiv taus corrosion heev.Nws cov xim yog steel grey nrog me ntsis kov ntawm xiav thiab ntshav.Feem ntau tantalum yog siv rau me me capacitors nrog lub peev xwm siab, zoo li cov hauv xov tooj ntawm tes.Vim nws yog nontoxic thiab zoo sib xws nrog lub cev, nws yog siv nyob rau hauv cov tshuaj rau prostheses thiab cov twj paj nruag.Tantalum yog qhov tsis tshua muaj kev ruaj khov nyob hauv lub ntiaj teb, txawm li cas los xij, lub ntiaj teb muaj cov deposits loj.Tantalum carbide (TaC) thiab tantalum hafnium carbide (Ta4HfC5) yog ib qho nyuaj heev thiab mechanically enduring.