tantalum
chemical element with symbol Ta and atomic number 73
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Summary
tantalum is a chemical element[1]. tantalum draws 32,694 Wikipedia views per month (chemical element category, ranking #57 of 144).[2]
Key Facts
- Discoverer or inventor: Anders Gustaf Ekeberg[3]
- Instance of: combustible powder[4], lithophile[5]
- Named after: Tantalus[6]
- Made from material: tantalite[7], microlite[8], wodginite[9], euxenite-(Y)[10], polycrase-(Y)[11], fergusonite-(REE) series[12], samarskite mineral group[13]
- Canonical SMILES: [Ta][14]
- Element symbol: Ta[15]
- Chemical formula: Ta[16]
- Subclass of: metal[17], d-block[18]
- Part of: period 6[19], group 5[20], transition metal[21]
- Commons category: Tantalum[22]
- Unicode character: 鉭[23]
- Crystal system: tetragonal crystal system[24]
- Time of discovery or invention: 1802[25]
- Point group: tetragonal-scalenohedral[26]
- Space group: space group P-42₁m[27]
- IPA transcription: ˈtæntələm[28]
- Topic's main category: Category:Tantalum[29]
- Atomic number: 73[30]
- Mohs' hardness: 6.5[31]
- Electronegativity: 1.5[32]
- Oxidation state: 2[33], 3[34], 4[35], 5[36], -3[37], -1[38], 0[39], 1[40]
- Described by source: Small Brockhaus and Efron Encyclopedic Dictionary[41], Brockhaus and Efron Encyclopedic Dictionary[42], Armenian Soviet Encyclopedia[43], Meyers Konversations-Lexikon, 4th edition (1885–1890)[44], Encyclopædia Britannica 11th edition[45]
- Has effect: tantalum exposure[46]
- Has characteristic: paramagnetism[47]
- Different from: Tántalo[48]
Body
Influence
Things named for tantalum include tantalite[49], a mineral series[50]; tantalcarbide[51], a mineral species[52]; and tanteuxenite-(Y)[53], a mineral species[54].
Why It Matters
tantalum has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[55] tantalum is known by 61 alternative names across languages and contexts.[56]
Entities named for tantalum include tantalite[49], a mineral series[50]; tantalcarbide[51], a mineral species[52]; and tanteuxenite-(Y)[53], a mineral species[54].