73
Ta
180.95
Tantalum (Ta)
Element 73 · Period 6 · Group 5
transition-metal
solid at room temp
d-block
About Tantalum
Extremely corrosion-resistant. Used in capacitors for electronics and medical implants.
Physical Properties
Atomic Mass
180.95 u
State at 25°C
Solid
Melting Point
3017 °C
Boiling Point
5458 °C
Density
16.65 g/cm³
Magnetism
Paramagnetic
Atomic Properties
Electron Configuration
[Xe] 4f¹⁴ 5d³ 6s²
Electron Shells
2, 8, 18, 32, 11, 2
Electronegativity
1.5
Atomic Radius
200 pm
Ionization Energy
761 kJ/mol
Oxidation States
+5
Discovery & History
Discovered By
Anders Gustav Ekeberg
Discovery Year
1802
Named By
Anders Gustav Ekeberg
Name origin: Greek myth: Tantalus
Frequently Asked Questions
- Is Tantalum a metal, nonmetal, or metalloid?
- Tantalum is classified as a transition-metal.
- What state is Tantalum in at room temperature?
- Tantalum is a solid at standard room temperature (25°C).
- What is the atomic mass of Tantalum?
- Tantalum has an atomic mass of 180.95 atomic mass units (u).
- Who discovered Tantalum?
- Tantalum was discovered by Anders Gustav Ekeberg in 1802.
- Where is Tantalum on the periodic table?
- Tantalum is element number 73, located in period 6 and group 5.