Compare Elements

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

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Element comparison
Property Zr Zirconium Rf Rutherfordium
Atomic Number 40 lower 104 lower
Symbol Zr different Rf different
Name Zirconium different Rutherfordium different
Atomic Mass 91.22 lower 267.122 lower
Category Transition Metals same value Transition Metals same value
Period 5 lower 7 lower
Group 4 same value 4 same value
Block d-Block same value d-Block same value
Standard State Solid same value Solid same value
Electronegativity 1.33 no data — no data
Atomic Radius 186 no data — no data
Ionization Energy 6.634 no data — no data
Electron Affinity 0.426 no data — no data
Oxidation States +4 same value +4 same value
Melting Point 2128 K (1854.85 °C) no data — no data
Boiling Point 4682 K (4408.85 °C) no data — no data
Density 6.52 no data — no data
Electron Configuration [Kr]5s2 4d2 different [Rn]7s2 5f14 6d2 different
Year Discovered 1789 different 1964 different

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