Tantalum yog cov khoom siv hlau nrog tus lej atomic ntawm 73 thiab cov cim tshuaj Ta. Lub ntsiab lus sib xws monomer yog cov hlau-grey hlau uas tiv taus corrosion heev, ob qho tib si hauv qhov txias thiab kub, thiab tsis hnov mob rau hydrochloric acid, concentrated nitric acid lossis "aqua regia".
Tantalum feem ntau pom nyob rau hauv tantalite, symbiotically nrog niobium. Tantalum yog ib qho nyuaj me ntsis [1], ductile, thiab tuaj yeem kos rau hauv nyias, filamentary ntawv ci. Nws coefficient ntawm thermal expansion yog tsawg heev. Tantalum muaj cov tshuaj zoo heev thiab tiv taus corrosion heev. Yuav siv tau los tsim cov hlab ntsha evaporator, thiab lwm yam, tuaj yeem ua cov electrode ntawm lub raj, rectifier, electrolytic capacitors. Kev kho mob nws yog siv los ua cov ntawv nyias lossis cov xov hlau zoo los kho cov ntaub so ntswg puas. Txawm hais tias tantalum muaj zog heev rau corrosion, nws cov corrosion kuj yog vim lub cim ntawm ib tug ruaj khov tiv thaiv zaj duab xis ntawm tantalum pentoxide (Ta₂O₅) nyob rau saum npoo.
