Atomic NumberAtomic Number of Tantalum
Atomic Number of Tantalum is 73.
Chemical symbol for Tantalum is Ta. Number of protons in Tantalum is 73. Atomic weight of Tantalum is 180.94788 u or g/mol. Melting point of Tantalum is 2996 °C and its the boiling point is 5425 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Tantalum
Tantalum is a strong shiny metal resistive to corrosion which is quite rare in nature in its pure form. It can be extracted from minerals which can be found in Brazil, Australia, and Canada. It usually occurs in compounds with niobium. The name of this chemical element comes from the Greek mythological character Tantalus the King. Tantalum is a very good insulator so it is used in electronic compound production; in particular, capacitors for mobile phones, etc. This chemical element also forms very strong alloys with other metals like iron, and the alloys are used for producing some parts of aircrafts, turbines, windmills, etc.
Properties of Tantalum Element
| Atomic Number (Z) | 73 |
|---|---|
| Atomic Symbol | Ta |
| Group | 5 |
| Period | 6 |
| Atomic Weight | 180.94788 u |
| Density | 16.654 g/cm3 |
| Melting Point (K) | 3290 K |
| Melting Point (℃) | 2996 °C |
| Boiling Point (K) | 5731 K |
| Boiling Point (℃) | 5425 °C |
| Heat Capacity | 0.14 J/g · K |
| Abundance | 2 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Transition metal |
| Electronegativity (Pauling) χ | 1.5 |
| Ionization Energy (eV) | 7.5496 |
| Atomic Radius | 145pm |
| Covalent Radius | 138pm |
| Valence Electrons | 2 |
| Year of Discovery | 1802 |
| Discoverer | Ekeberg |