Hassium
Atomic symbol: Hs
Atomic number: 108
Atomic mass: 277
Appearance: Dark grey solid at 25°C
Group: 8
Period: 7
Series: d
Block: Transition metals
Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 5f¹⁴ 6d⁶ 7s²
A superheavy, synthetic, highly radioactive metal.
Produced from the isotopes lead-208 and iron-58.
Fun Fact! Hassium-269, the most stable hassium isotope, has an incredibly short half-life of only 9.7 seconds!