Input interpretation
![actinides | first molar ionization energy](../image_source/ce1e63ec13350fe9f5438a3948fa3dce.png)
actinides | first molar ionization energy
Summary
![median | 599 kJ/mol highest | 642 kJ/mol (nobelium) lowest | 499 kJ/mol (actinium) distribution | | (based on 14 values; 1 unavailable)](../image_source/6529fc367f27f66e7054d3fe05dca679.png)
median | 599 kJ/mol highest | 642 kJ/mol (nobelium) lowest | 499 kJ/mol (actinium) distribution | | (based on 14 values; 1 unavailable)
Entity with missing value
![lawrencium](../image_source/48dec70b02787616b281f9e98026682d.png)
lawrencium
Distribution plots
![(first molar ionization energy in kilojoules per mole)](../image_source/d0c68e0b42c28d0c6a6c7396cec4bad7.png)
(first molar ionization energy in kilojoules per mole)
First molar ionization energy rankings
![1 | actinium | 499 kJ/mol 2 | protactinium | 568 kJ/mol 3 | americium | 578 kJ/mol 4 | curium | 581 kJ/mol 5 | plutonium | 584.7 kJ/mol 6 | thorium | 587 kJ/mol 7 | uranium | 597.6 kJ/mol 8 | berkelium | 601 kJ/mol 9 | neptunium | 604.5 kJ/mol 10 | californium | 608 kJ/mol 11 | einsteinium | 619 kJ/mol 12 | fermium | 627 kJ/mol 13 | mendelevium | 635 kJ/mol 14 | nobelium | 642 kJ/mol (based on 14 values; 1 unavailable)](../image_source/b50502e441c58615833c9869411af853.png)
1 | actinium | 499 kJ/mol 2 | protactinium | 568 kJ/mol 3 | americium | 578 kJ/mol 4 | curium | 581 kJ/mol 5 | plutonium | 584.7 kJ/mol 6 | thorium | 587 kJ/mol 7 | uranium | 597.6 kJ/mol 8 | berkelium | 601 kJ/mol 9 | neptunium | 604.5 kJ/mol 10 | californium | 608 kJ/mol 11 | einsteinium | 619 kJ/mol 12 | fermium | 627 kJ/mol 13 | mendelevium | 635 kJ/mol 14 | nobelium | 642 kJ/mol (based on 14 values; 1 unavailable)
Unit conversions for median first molar ionization energy 599 kJ/mol
![0.599 MJ/mol (megajoules per mole)](../image_source/0b8d7e326c6e89f6c086fa9d9b57ee98.png)
0.599 MJ/mol (megajoules per mole)
![599000 J/mol (joules per mole)](../image_source/7a9a4ee4fe70c286ac211bbd1572f187.png)
599000 J/mol (joules per mole)
![143 kcal/mol (thermochemical kilocalories per mole)](../image_source/5455dc8ae6ca65d88981254905162885.png)
143 kcal/mol (thermochemical kilocalories per mole)
![6.21 eV (molar electronvolts)](../image_source/1fe5cd5e504327c6c4270439d713986d.png)
6.21 eV (molar electronvolts)
Comparisons for median first molar ionization energy 599 kJ/mol
![≈ 0.25 × molar energy required to remove the first electron from helium ( 2372 kJ/mol )](../image_source/cff93359eb8476c821a231220a40fa5e.png)
≈ 0.25 × molar energy required to remove the first electron from helium ( 2372 kJ/mol )
![≈ 1.6 × molar energy required to remove the first electron from cesium ( 377 kJ/mol )](../image_source/12bd1d5f11d8342bbe4d5fdac622268f.png)
≈ 1.6 × molar energy required to remove the first electron from cesium ( 377 kJ/mol )