Tantalum chinhu chemakemikari chine chiratidzo Ta uye nhamba yeatomu 73. Yaimbozivikanwa se tantalium, zita rayo rinobva kuna Tantalus, munhu akaipa kubva mungano yechiGiriki. Tantalum isimbi isingawanzoitiki, yakaoma, yebhuruu-grey, inopenya inoshingirira mukuora. Icho chikamu cheboka resimbi refractory, iro rinoshandiswa zvakanyanya sezvikamu zvidiki mune alloys. Iyo kemikari inertness yetantalum inoita kuti ive chinhu chakakosha chemidziyo yemurabhoritari uye inotsiva platinamu. Kushandiswa kwayo kukuru nhasi kuri mu tantalum capacitors mumidziyo yemagetsi senge mbozha nhare, maDVD player, masystem emitambo yemavhidhiyo uye makomputa. Tantalum, nguva dzose pamwe chete nekemikari yakafanana niobium, inowanikwa mumapoka emaminerari tantalite, columbite uye coltan (musanganiswa wecolumbite uye tantalite, kunyange zvazvo isingazivikanwe semhando yakasiyana yemaminerari). Tantalum inoonekwa se tekinoroji-yakakosha chinhu.

Zvinhu zvenyama
Tantalum yakasviba (blue-grey), dense, ductile, yakaoma kwazvo, inogadzirwa zviri nyore, uye inobata zvakanyanya kupisa nemagetsi. Iyo simbi inozivikanwa nekuramba kwayo kuita ngura nemaasidhi; kutaura zvazviri, patembiricha iri pasi pe150 °C tantalum inenge isingadziviriri kurwiswa neanowanzo utsinye aqua regia. Inogona kunyungudutswa ne hydrofluoric acid kana acidic solutions ine fluoride ion uye sulfur trioxide, pamwe nemhinduro ye potassium hydroxide. Tantalum's high melting point ye3017 °C (boiling point 5458 °C) inopfuurwa pakati pezvinhu chete ne tungsten, rhenium ne osmium yesimbi, uye kabhoni.

Tantalum iripo muzvikamu zviviri zvecrystalline, alpha uye beta. Iyo alpha phase ine ductile uye yakapfava; ine body-centered cubic structure (space group Im3m, lattice constant a = 0.33058 nm), Knoop hardness 200–400 HN uye magetsi resistivity 15–60 µΩ⋅cm. The beta phase yakaoma uye brittle; crystal symmetry is tetragonal (space group P42/mnm, a = 1.0194 nm, c = 0.5313 nm), Knoop hardness ndeye 1000–1300 HN uye resitiri yemagetsi yakakwira zvishoma pa170–210 µΩ⋅cm. Chikamu chebeta chinogoneka uye chinoshandura kuchikamu chealpha pakudziya kusvika 750-775 ° C. Bulk tantalum inenge yakazara alpha chikamu, uye chikamu chebeta chinowanzovapo semafirimu matete anotorwa nemagnetron sputtering, kemikari mhute deposition kana electrochemical deposition kubva kune eutectic yakanyungudutswa munyu mhinduro.