Nickel (Ni)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
58Ni	>99%	68.0769	Ni, NiNO3
60Ni		26.2231	Ni, NiNO3
61Ni		1.1399	Ni, NiNO3
62Ni		3.6345	Ni, NiNO3
64Ni		0.9256	Ni, NiNO3

Selenium (Se)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
74Se	>99%	0.89	Se
76Se	>95%	9.37	Se
77Se	>70%	7.63	Se
78Se		23.77	Se
80Se	>90%	49.61	Se
82Se	>95%	8.73	Se

Silicon (Si)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
28Si		92.23	Oxide
29Si		4.67	Oxide
30Si		3.10	Oxide

Tellurium (Te)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
120Te		0.09	TeO2
122Te		2.55	TeO2
123Te	>99.3%	0.89	TeO2
124Te	>90% (98%)	4.74	TeO2
125Te		7.07	TeO2
126Te		18.84	TeO2
128Te		31.74	TeO2
130Te	>90% (>99% possible)	34.08	TeO2

Tin (Sn)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
112Sn	In development	1.0	Metal, oxide
114Sn	In development	0.7	Metal, oxide
115Sn	In development	0.4	Metal, oxide
116Sn	In development	14.7	Metal, oxide
117Sn	In development	7.7	Metal, oxide
118Sn	In development	24.3	Metal, oxide
119Sn	In development	8.6	Metal, oxide
120Sn	In development	32.4	Metal, oxide
122Sn	In development	4.6	Metal, oxide
124Sn	In development	5.6	Metal, oxide

Titanium (Ti)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
46Ti	>97%; <1%*)	8.25	TiO2, TiCl4
47Ti		7.44	TiO2, TiCl4
48Ti	>99%	73.72	TiO2, TiCl4
49Ti		5.41	TiO2, TiCl4
50Ti	>90%	5.18	TiO2, TiCl4

* Ti depleted in ⁴⁶Ti  <1%.

Tungsten (W)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
180W		0.12	W, WO3
182W	>90%	26.50	W, WO3
183W		14.31	W, WO3
184W	>90%	30.64	W, WO3
186W	>98%	28.43	W, WO3

Xenon (Xe)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
124Xe	>99%	0.09	Xe
126Xe	>99%	0.09	Xe
128Xe		1.92	Xe
129Xe	>99%	26.44	Xe
130Xe		4.08	Xe
131Xe	>99%	21.18	Xe
132Xe	>99%	26.9	Xe
134Xe		10.4	Xe
136Xe	>50%	8.9	Xe

Ytterbium (Yb)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
168Yb	In development	0.13	Oxide
170Yb	In development	3.05	Oxide
171Yb	In development	14.3	Oxide
172Yb	In development	21,9	Oxide
173Yb	In development	16.12	Oxide
174Yb	In development	31,8	Oxide
176Yb	In development	12.7	Oxide

Molybdenum (Mo)

Isotope	Available Enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
92Mo		14.84	Metal
94Mo		9.25	Metal
95Mo	<1% *)	15.92	Metal
96Mo		16.68	Metal
97Mo		9.55	Metal
98Mo		24.13	Metal
100Mo		9.63	Metal

* depleted in ⁹⁵Mo < 1%

Lead (Pb)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
204Pb	In development	1.4	Oxide
206Pb	In development	24.1	Oxide
207Pb	In development	22.1	Oxide
208Pb	In development	52.4	Oxide

Krypton (Kr)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
78Kr	In development	0.35	Gas
80Kr	In development	2.28	Gas
82Kr	In development	11.58	Gas
83Kr	In development	11.49	Gas
84Kr	In development	57.0	Gas
86Kr	In development	17.3	Gas

Iron (Fe)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
54Fe	In development	5.8	Fe
56Fe	In development	91.72	Fe
57Fe	In development	2.2	Fe
58Fe	In development	0.28	Fe

Iridium (Ir)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
191Ir	>80%	37.3	Ir*
193Ir	>95%	62.7	Ir*

* Available as iridium-black powder,  metal rods, metal thread, metal pellets, etc.

Zinc (Zn)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
64Zn		48.6	Metal, oxide
66Zn	>98%	27.9	Metal, oxide
67Zn	>88%	4.1	Metal, oxide
68Zn	99%	18.8	Metal, oxide
70Zn	>95%	0.6	Metal, oxide

Germanium (Ge)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
70Ge	97%	20.84	Ge02
72Ge	>50%	27.54	Ge02 , GeF4
73Ge		7.73	Ge02
74Ge	>97%	36.28	Ge02
76Ge	>95%	7.61	Ge02

Chromium (Cr)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
50Cr		4.345	Metal
52Cr		83.789	Metal
53Cr		9.501	Metal
54Cr		2.365	Metal

Carbon (C)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
12C		98.93	N/A
13C	In development	1.07	N/A

Cadmium (Cd)

Isotope	Maximum available enrichment (atomic %)	Natural abundance (atomic %)	Chemical form
106Cd	>95%	1.25	Cd, CdO
108Cd		0.89	Cd, CdO
110Cd		12.51	Cd, CdO
111Cd		12.1	Cd, CdO
112Cd	>98%	24.13	Cd, CdO
113Cd	>94%	12.22	Cd, CdO
114Cd	>98%	28.72	Cd, CdO
116Cd	>96%	7.47	Cd, CdO