Compare Elements

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

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

higher lower