Compare Elements

Compare two chemical elements side by side across 19 atomic and physical properties.

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Element comparison
Property Hs Hassium Fr Francium
Atomic Number 108 higher 87 higher
Symbol Hs different Fr different
Name Hassium different Francium different
Atomic Mass 269.1336 higher 223.0197 higher
Category Transition Metals different Alkali Metals different
Period 7 same value 7 same value
Group 8 higher 1 higher
Block d-Block different s-Block different
Standard State Solid same value Solid same value
Electronegativity — no data 0.7 no data
Atomic Radius — no data 348 no data
Ionization Energy — no data 3.9 no data
Electron Affinity — no data 0.47 no data
Oxidation States 8, 6, 5, 4, 3, 2 different +1 different
Melting Point — no data 300 K (26.85 °C) no data
Boiling Point — no data — no data
Density — no data — no data
Electron Configuration [Rn]7s2 5f14 6d6 different [Rn]7s1 different
Year Discovered 1984 different 1939 different

higher lower