X-ray absorption edges by element

Pick an element for its edge energies, jump ratios and fluorescence yields, and to open it in the lab. The tables cover hydrogen to californium ( $Z = 1\text{ to }98$ ).

Periodic table

Elements are ordered by atomic number. The two lower rows contain the lanthanides and actinides. Scroll within the table on a small screen, or use the list below.

K and $L_{3}$ edge energies

All tabulated elements, in atomic-number order. Scroll within the table to see every column.
$Z$	Element	K edge ( $eV$ )	$L_{3}$ edge ( $eV$ )
1	Hydrogen (H)	13.6	Not listed
2	Helium (He)	24.6	Not listed
3	Lithium (Li)	54.7	Not listed
4	Beryllium (Be)	111.5	3
5	Boron (B)	188	4.7
6	Carbon (C)	284.2	7.2
7	Nitrogen (N)	409.9	17.5
8	Oxygen (O)	543.1	18.2
9	Fluorine (F)	696.7	19.9
10	Neon (Ne)	870.2	21.6
11	Sodium (Na)	1,070.8	30.5
12	Magnesium (Mg)	1,303	49.21
13	Aluminum (Al)	1,559	72.5
14	Silicon (Si)	1,839	99.2
15	Phosphorus (P)	2,145.5	135
16	Sulfur (S)	2,472	162.5
17	Chlorine (Cl)	2,822	200
18	Argon (Ar)	3,205.9	248.4
19	Potassium (K)	3,608.4	294.6
20	Calcium (Ca)	4,038.5	346.2
21	Scandium (Sc)	4,492	398.7
22	Titanium (Ti)	4,966	453.8
23	Vanadium (V)	5,465	512.1
24	Chromium (Cr)	5,989	574.1
25	Manganese (Mn)	6,539	638.7
26	Iron (Fe)	7,112	706.8
27	Cobalt (Co)	7,709	778.1
28	Nickel (Ni)	8,333	852.7
29	Copper (Cu)	8,979	932.7
30	Zinc (Zn)	9,659	1,021.8
31	Gallium (Ga)	10,367	1,116.4
32	Germanium (Ge)	11,103	1,217
33	Arsenic (As)	11,867	1,323.6
34	Selenium (Se)	12,658	1,433.9
35	Bromine (Br)	13,474	1,550
36	Krypton (Kr)	14,326	1,678.4
37	Rubidium (Rb)	15,200	1,804
38	Strontium (Sr)	16,105	1,940
39	Yttrium (Y)	17,038	2,080
40	Zirconium (Zr)	17,998	2,223
41	Niobium (Nb)	18,986	2,371
42	Molybdenum (Mo)	20,000	2,520
43	Technetium (Tc)	21,044	2,677
44	Ruthenium (Ru)	22,117	2,838
45	Rhodium (Rh)	23,220	3,004
46	Palladium (Pd)	24,350	3,173
47	Silver (Ag)	25,514	3,351
48	Cadmium (Cd)	26,711	3,538
49	Indium (In)	27,940	3,730
50	Tin (Sn)	29,200	3,929
51	Antimony (Sb)	30,491	4,132
52	Tellurium (Te)	31,814	4,341
53	Iodine (I)	33,169	4,557
54	Xenon (Xe)	34,561	4,786
55	Cesium (Cs)	35,985	5,012
56	Barium (Ba)	37,441	5,247
57	Lanthanum (La)	38,925	5,483
58	Cerium (Ce)	40,443	5,723
59	Praseodymium (Pr)	41,991	5,964
60	Neodymium (Nd)	43,569	6,208
61	Promethium (Pm)	45,184	6,459
62	Samarium (Sm)	46,834	6,716
63	Europium (Eu)	48,519	6,977
64	Gadolinium (Gd)	50,239	7,243
65	Terbium (Tb)	51,996	7,514
66	Dysprosium (Dy)	53,789	7,790
67	Holmium (Ho)	55,618	8,071
68	Erbium (Er)	57,486	8,358
69	Thulium (Tm)	59,390	8,648
70	Ytterbium (Yb)	61,332	8,944
71	Lutetium (Lu)	63,314	9,244
72	Hafnium (Hf)	65,351	9,561
73	Tantalum (Ta)	67,416	9,881
74	Tungsten (W)	69,525	10,207
75	Rhenium (Re)	71,676	10,535
76	Osmium (Os)	73,871	10,871
77	Iridium (Ir)	76,111	11,215
78	Platinum (Pt)	78,395	11,564
79	Gold (Au)	80,725	11,919
80	Mercury (Hg)	83,102	12,284
81	Thallium (Tl)	85,530	12,658
82	Lead (Pb)	88,005	13,035
83	Bismuth (Bi)	90,526	13,419
84	Polonium (Po)	93,105	13,814
85	Astatine (At)	95,730	14,214
86	Radon (Rn)	98,404	14,619
87	Francium (Fr)	101,137	15,031
88	Radium (Ra)	103,922	15,444
89	Actinium (Ac)	106,755	15,871
90	Thorium (Th)	109,651	16,300
91	Protactinium (Pa)	112,601	16,733
92	Uranium (U)	115,606	17,166
93	Neptunium (Np)	118,669	17,610
94	Plutonium (Pu)	121,791	18,057
95	Americium (Am)	124,982	18,510
96	Curium (Cm)	128,241	18,970
97	Berkelium (Bk)	131,556	19,435
98	Californium (Cf)	134,939	19,907

Edge energies from XrayDB 9.2 (Elam, Ravel and Sieber, 2002) for isolated atoms, without chemical shifts. The lab has cross sections between 100 $eV$ and 100 $keV$ ; edges outside that range are listed for reference. Methods and data sources

X-ray absorption edges by element

Periodic table

K and L3​ edge energies

K and $L_{3}$ edge energies