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73 Transition Metal
Ta

Tantalum

RIS 0.006
Velocity +0.000
Rank#62
Co-citedNb

Tantalum (Ta) is a transition metal with atomic number 73: a neutral tantalum atom has 73 protons and 73 electrons. Atomic mass 180.95 u, electron configuration [Xe] 4f14 5d3 6s2. Tantalum is a rare, hard metal used in electronic capacitors found in every smartphone.

Physical properties
Atomic mass 180.95 u
Category Transition Metal
Block d-block
State Solid
Config [Xe] 4f14 5d3 6s2
Electronegativity 1.5
Density 16.654 g/cm³
Melting 3290.0 K
Boiling 5731.0 K
Ionization 761.0 kJ/mol
Oxidation +2, +3, +4, +5
Discovered 1802 · Anders Gustaf Ekeberg
Tantalum's history

Research intensity over time

Research communities behind this literature

Groups of papers that cite each other densely, with the share of Tantalum's tracked research in each.