Atomic Number
108
Element 108
Hassium (Hs)
Hassium is a chemical element with symbol Hs and atomic number 108. It is named after the German state of Hesse. As a synthetic element, it can be created in a laboratory but is not found in nature.
Atomic Mass
269 u
Category
Transition Metal
Period
7
Group
Group 8: iron group
Phase
solid
Density
40.7 g/cm3
Electron Shells
2, 8, 18, 32, 32, 14, 2
Atomic Structure
Protons: 108. Electrons: 108. Neutrons: Varies by isotope.
Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d⁶
Why Hassium Matters
Hassium helps connect atomic number 108, transition metal behavior, period 7 trends, and electron shell structure. Its solid phase, atomic mass of 269 u, and electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d⁶ make it useful for comparing bonding patterns across the periodic table.
Discovery and Occurrence
Hassium was discovered 1984 by Peter Armbruster, Gottfried Munzenberg. Hassium is a chemical element with symbol Hs and atomic number 108. It is named after the German state of Hesse. As a synthetic element, it can be created in a laboratory but is not found in nature.
Safety and Handling Context
Hassium has radioactive isotopes or is commonly discussed with radioactive materials. Use this page as an educational reference; real samples require qualified supervision and controlled handling.
Related Elements
Frequently Asked Questions
- What is the atomic number of Hassium?
- Hassium has atomic number 108, which means a neutral atom has 108 protons and 108 electrons.
- What is the chemical symbol for Hassium?
- The chemical symbol for Hassium is Hs.
- What category is Hassium in?
- Hassium is classified as a transition metal and sits in period 7 of the periodic table.
Explore Hassium in 3D
Use the interactive table above to rotate atomic models, compare periodic trends, and move from Hassium to neighboring elements without losing your place.