Thorium
Element density: 11.72 g/cm3
Electron configuration: [Rn]6d27s2
Oxidation states: +4

Edges
Explore electron energy loss spectroscopy (EELS) reference spectra, featuring major and minor edges used for elemental identification and chemical state analysis in materials research.
Major edges | |||
|---|---|---|---|
L3 | 16300 |
|
|
M4 | 3491 |
|
|
M5 | 3332 |
|
|
N6 | 344 |
|
|
N7 | 335 |
|
|
O4 | 94 |
|
|
O5 | 88 |
|
|
Minor edges | |||
|---|---|---|---|
L1 | 20472 |
|
|
L2 | 19693 |
|
|
M1 | 5182 |
|
|
M2 | 4830 |
|
|
M3 | 4046 |
|
|
N1 | 1330 |
|
|
N2 | 1168 |
|
|
N3 | 967 |
|
|
N4 | 714 |
|
|
N5 | 676 |
|
|
O1 | 290 |
|
|
O2 | 229 |
|
|
O3 | 182 |
|
|
Enhance your EELS community
Share spectra with your fellow EELS users from around the world.
Related spectral data

Th particle on holey C film (0 – 190 eV)
Material analyzed: Th
Related elements: Thorium
Data contributor: Gatan
Beam energy (keV): 120
Nominal energy range (eV): 0 – 190
Collection semi-angle effective (mrad): 100
Notes: Serial EELS; slightly oxidized

Th particle on holey C film (0 – 990 eV)
Material analyzed: Th
Related elements: Thorium
Data contributor: Gatan
Beam energy (keV): 120
Nominal energy range (eV): 0 – 990
Collection semi-angle effective (mrad): 100
Notes: Serial EELS; slightly oxidized; zero-loss peak intensity = 1.3e8; total elastic int. / zero-loss int. = 0.71; gain change factor = 1881
