Compare Elements

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

Swap
Element comparison
Property Ce Cerium Nd Neodymium
Atomic Number 58 lower 60 lower
Symbol Ce different Nd different
Name Cerium different Neodymium different
Atomic Mass 140.116 lower 144.24 lower
Category Lanthanides same value Lanthanides same value
Period 6 same value 6 same value
Group 3 same value 3 same value
Block f-Block same value f-Block same value
Standard State Solid same value Solid same value
Electronegativity 1.12 lower 1.14 lower
Atomic Radius 235 higher 229 higher
Ionization Energy 5.539 higher 5.525 higher
Electron Affinity 0.5 no data — no data
Oxidation States +4, +3 different +3 different
Melting Point 1071 K (797.85 °C) lower 1294 K (1020.85 °C) lower
Boiling Point 3697 K (3423.85 °C) higher 3347 K (3073.85 °C) higher
Density 6.77 lower 7.01 lower
Electron Configuration [Xe]6s2 4f1 5d1 different [Xe]6s2 4f4 different
Year Discovered 1803 different 1885 different

higher lower