Compare Elements

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

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Element comparison
Property La Lanthanum Y Yttrium
Atomic Number 57 higher 39 higher
Symbol La different Y different
Name Lanthanum different Yttrium different
Atomic Mass 138.9055 higher 88.9058 higher
Category Lanthanides different Transition Metals different
Period 6 higher 5 higher
Group 3 same value 3 same value
Block f-Block different d-Block different
Standard State Solid same value Solid same value
Electronegativity 1.1 lower 1.22 lower
Atomic Radius 240 higher 219 higher
Ionization Energy 5.577 lower 6.217 lower
Electron Affinity 0.5 higher 0.307 higher
Oxidation States +3 same value +3 same value
Melting Point 1191 K (917.85 °C) lower 1795 K (1521.85 °C) lower
Boiling Point 3737 K (3463.85 °C) higher 3618 K (3344.85 °C) higher
Density 6.15 higher 4.47 higher
Electron Configuration [Xe]6s2 5d1 different [Kr]5s2 4d1 different
Year Discovered 1839 different 1794 different

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