Summaries of BEs in NIST Database


  • This collection of BE tables was compiled by M. Biesinger (UWO) by summarizing the BEs listed in the NIST XPS Database of BEs.
  • Please review and evaluate the Standard Deviation (Std. Dev.) value when you are using any of these BEs to make any chemical state assignment.
  • Large “Std. Dev.” values having only a few # of Reference citings are risky to use and may lead to wrong assignments, decisions and errors.  Be careful please.  Many researchers depend on your chemical state assignments to be accurate!
  • Because the original researcher used C (1s) BEs that could be 284.6 eV, 284.8 eV, or 285.0 eV, the BEs for insulators might vary by as much as 0.4 eV.
  • Older publications used different calibration energies for the Cu 2p3/2 BE:  932.2 eV, 932.47 eV, or 932.8 eV.  This means that BEs above 500 eV can vary by as much as 0.6 eV for both insulators and conductors.
  • The accuracy, precision, and reproducibility of these BEs depends on the efforts used by the original researchers.  To learn more, please visit the NIST link in the main menu.


Aluminum, (Al)  

Al (2p3/2)  BEs





Antimony, (Sb)

Sb (3d5/2) BEs


Argon, (Ar)

Arsenic, (As)

As (3d5/2) BEs



Barium, (Ba)

Ba (3d5/2) BEs



Beryllium, (Be)

Be (1s) BEs



Bismuth, (Bi)

Bi (4f7/2) BEs


Boron, (B)

B (1s) BEs





Bromine, (Br)

Br (3d5/2) BEs


Cadmium, (Cd)

Cd (3d5/2) BEs


Calcium, (Ca)

Ca (2p3/2) BEs


Carbon, (C), in Polymers

C (1s) BEs


Cerium, (Ce)

Cesium, (Cs)


Chlorine, (Cl)

Cl (2p3/2) BEs

Chromium, (Cr)

Cobalt, (Co)


Copper, (Cu)

Cu (2p3/2) BEs

Copper, (Cu)

Cu (2p3/2) BEs





Dysprosium, (Dy)

Erbium, (Er)

Europium, (Eu)

Fluorine, (F)

F (1s) BEs


Gadolinium, (Gd)


Gallium, (Ga)

Ga (3p3/2) BEs


Ga (3d5/2) BEs


Ga (2p3/2) BEs



Germanium, (Ge)

Ge (3p3/2) BEs


Ge (3d5/2) BEs




Hafnium, (Hf)

Hf (4f7/2) BEs

Holmium, (Ho)

Indium, (In)

In (3d5/2) BEs




Iodine, (I)

I (3d5/2) BEs



Iridium, (Ir)

Ir (4f7/2) BEs



Lanthanum, (La)

Lead, (Pb)

Pb (4f7/2) BEs


Lithium, (Li)

Li (1s) BEs


Lutetium, (Lu)


Magnesium, (Mg)

Mg (1s) BEs


Manganese, (Mn)

Mercury, (Hg)

Hg (4f7/2) BEs




Molybdenum, (Mo)

Mo (3d5/2) BEs



Neodymium, (Nd)

Neon, (Ne)

Nitrogen, (N)

N (1s) BEs




Niobium, (Nb)

Nb (3d5/2) BEs


Nickel, (Ni)

Oxygen, (O), in Polymers

O (1s) BEs 



Oxygen, (O)

O (1s) BEs




Osmium, (Os)


Palladium, (Pd)

Pd (3d5/2) BEs



Phosphorus, (P)

P (2p3/2) BEs


Platinum, (Pt)

Pt (4f7/2) BEs




Rhenium, (Re)



Rhodium, (Rh)

Rh (3d5/2) BEs


Ruthenium, (Ru)

Ru (3d5/2) BEs


Samarium, (Sm)

Scandium, (Sc)

Sc (2p3/2) BEs



Selenium, (Se)

Se (3d5/2) BEs



Silicon, (Si)

Si (2p3/2) BEs



Silver, (Ag)

Ag (3d5/2) BEs



Sodium, (Na)

Na (1s) BEs



Strontium, (Sr)

Sr (3d5/2) BEs



Sulfur, (S), in Organics

S (2p3/2) BEs


Sulfur, (S), in Inorganics

S (2p3/2) BEs




Tantalum, (Ta)

Tellurium, (Te)

Te (3d5/2) BEs


Technitium, (Tc)

Terbium, (Tb)

Thallium, (Tl)

Thorium, (Th)

Thulmium, (Tm)

Tin, (Sn)

Sn (3d5/2) BEs




Titanium, (Ti)

Ti (2p3/2) BEs




Tungsten, (W)

W (4f7/2) BEs


Uranium, (U)

Vanadium, (V)

Xenon, (Xe)

Ytterbium, (Yb)

Yttrium, (Y)

Y (3d5/2) BEs


Zinc, (Zn)

Zn (2p3/2) BEs


Zirconium, (Zr)

Zr (3d5/2) BEs




Periodic Table:  Select the Element to see BEs for that Element