Njirimara anụ ahụ Tantalum
Akara kemịkalụ Ta, metal gray steel, bụ nke otu VB na tebụl oge
ihe, atomic nọmba 73, atomiki arọ 180.9479, ahu-gbadoro anya cubic crystal,
ọnụ ọgụgụ nkịtị bụ +5. Isi ike nke tantalum dị ala ma jikọtara ya na ikuku oxygen
ọdịnaya. Vickers siri ike nke tantalum dị ọcha bụ naanị 140HV na
steeti annealed. Ebe mgbaze ya dị elu dị ka 2995 Celsius, na-agbaze nke ise n'etiti ndị
elemental mgbe carbon, tungsten, rhenium na osmium. Tantalum bụ
malleable na ike-adọta n'ime mkpa filaments ka mkpa foils. Ọnụ ọgụgụ ya nke
Mgbasa ọkụ ọkụ dị obere. Ọ na-agbasa naanị site na akụkụ 6.6 kwa nde kwa ogo Celsius.
Tụkwasị na nke ahụ, ike ya siri ike, ọbụna karịa ọla kọpa.
Nọmba CAS: 7440-25-7
Ụdị ihe: mgbanwe metal ọcha.
Uka atomic emetụtara: 180.94788 (12C = 12.0000)
Njupụta: 16650kg/m³; 16.654g/cm³
Isi ike: 6.5
Ebe: okirikiri nke isii, Group VB, Mpaghara d
Ọdịdị: Steel Grey Metallic
Nhazi eletrọnị: [Xe] 4f14 5d3 6s2
Olu atọm: 10.90cm3/mol
Ọdịnaya nke ihe dị na mmiri mmiri: 0.000002ppm
Ọdịnaya dị na eriri: 1ppm
Oxidation steeti: +5 (isi), -3, -1, 0, +1, +2, +3
Ọdịdị kristal: cell unit bụ cell cubic unit nke gbadoro ụkwụ n'ahụ, yana cell unit ọ bụla
nwere 2 metal atọm.
Parampat cell:
a = 330.13 mgbede
b = 330.13 ehihie
c = 330.13 ehihie
α = 90°
β = 90°
γ = 90°
Vickers siri ike (agbaze arc na oyi siri ike): 230HV
Vickers ike (recrystallization annealing): 140HV
Vickers ike (mgbe otu eletrọn ọkụ gbazere): 70HV
Vickers siri ike (gbazere site na ọkụ eletrik nke abụọ): 45-55HV
Ebe mgbaze: 2995°C
Ọsọ mgbasa nke ụda na ya: 3400m/s
Ike ionization (kJ/mol)
M - M+ 761
M+ - M2+ 1500
M2+ - M3+ 2100
M3+ - M4+ 3200
M4+ - M5+ 4300
Achọpụtara ya: 1802 site n'aka onye Sweden chemist Anders Gustafa Eckberg.
Aha ihe: Ekberg kpọrọ ihe omume ahụ aha Tantalus, nna Queen
Neobi nke Thebes na akụkọ ifo Greek oge ochie.
Isi mmalite: Ọ kachasị dị na tantalite yana niobium na-ebikọ ọnụ.
Oge nzipu: Jan-06-2023