Apsidium: Hassium - Basic information and atomic structure.
ChemGlobe: Hassium - Electronic data along with general information and facts.
ChemicalElements.com: Hassium - Basic information, diagram of atomic structure, and facts.
Chemistry of Hassium, Element 108 - Article regarding a study conducted at the Berkeley National Laboratory.
EnvironmentalChemistry.com: Hassium - Atomic structure and table of nuclides.
It's Elemental: Hassium - Basic physical and historical information.
LANL: Hassium - Basic information and history.
Lenntech: Hassium - Basic data.
Visual Elements: Hassium - General and physical information, and key isotopes.
Wikipedia: Hassium - Basic physical and historical information.
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