Compare Elements

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

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Element comparison
Property B Boron In Indium
Atomic Number 5 lower 49 lower
Symbol B different In different
Name Boron different Indium different
Atomic Mass 10.81 lower 114.818 lower
Category Metalloids different Post-transition Metals different
Period 2 lower 5 lower
Group 13 same value 13 same value
Block p-Block same value p-Block same value
Standard State Solid same value Solid same value
Electronegativity 2.04 higher 1.78 higher
Atomic Radius 192 lower 193 lower
Ionization Energy 8.298 higher 5.786 higher
Electron Affinity 0.277 lower 0.3 lower
Oxidation States +3 same value +3 same value
Melting Point 2348 K (2074.85 °C) higher 429.75 K (156.6 °C) higher
Boiling Point 4273 K (3999.85 °C) higher 2345 K (2071.85 °C) higher
Density 2.37 lower 7.31 lower
Electron Configuration [He]2s2 2p1 different [Kr]5s2 4d10 5p1 different
Year Discovered 1808 different 1863 different

higher lower