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Isotopic Abundance (Nominal)

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
H	99.9	0.02
He			tr*	100
Li						7.5	92.5
Be									100
B										19.8	80.2
C												98.9	1.10
N														99.6	0.37
O																99.8	0.04	0.20
F																			100
Ne																				90.5
	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40
Ne	0.27	9.22
Na			100
Mg				79.0	10.0	11.0
Al							100
Si								92.2	4.67	3.10
P											100
S												95.0	0.75	4.21		0.02
Cl															75.8		24.2
Ar																0.34		0.06		99.6
K																			93.3	0.01
Ca																				96.9
	41	42	43	44	45	46	47	48	49	50	51	52	53	54	55	56	57	58	59	60
K	6.73
Ca		0.65	0.14	2.09		tr*		0.19
Sc					100
Ti						8.0	7.3	73.8	5.5	5.4
V										0.25	99.8
Cr										4.35		83.8	9.50	2.37
Mn															100
Fe														5.8		91.7	2.2	0.28
Co																				100
Ni																		68.3		26.1
	61	62	63	64	65	66	67	68	69	70	71	72	73	74	75	76	77	78	79	80
Ni	1.13	3.59		0.91
Cu			69.2		30.8
Zn				48.6		27.9	4.1	18.8		0.6
Ga									60.1		39.9
Ge										20.5		27.4	7.8	36.5		7.8
As															100
Se														0.9		9.0	7.6	23.5		49.6
Br																			50.7
Kr																		0.35		2.25
	81	82	83	84	85	86	87	88	89	90	91	92	93	94	95	96	97	98	99	100
Se		9.4
Br	49.3
Kr		11.6	11.5	57.0		17.3
Rb					72.2		27.8
Sr				0.56		9.86	7.00	82.6
Y									100
Zr										51.5	11.3	17.2		17.3		2.78
Nb													100
Mo												14.8		9.25	15.9	16.7	9.55	24.1		9.63
Ru																5.52		1.88	12.7	12.6
	101	102	103	104	105	106	107	108	109	110	111	112	113	114	115	116	117	118	119	120
Ru	17.0	31.6		18.7
Rh			100
Pd		1.02		11.1	22.3	27.3		26.5		11.7
Ag							51.8		48.2
Cd						1.25		0.89		12.5	12.8	24.1	12.2	28.7		7.49
In													4.3		95.7
Sn												1.0		0.7	0.4	14.7	7.7	24.3	8.6	32.4
Te																				0.10
	121	122	123	124	125	126	127	128	129	130	131	132	133	134	135	136	137	138	139	140
Sn		4.6		5.66
Sb	57.3		42.7
Te		2.60	0.91	4.82	7.14	19.0		31.7		33.8
I							100
Xe				0.10		0.09		1.91	26.4	4.1	21.2	26.9		10.4		8.9
Cs													100
Ba										0.11		0.10		2.42	6.59	7.85	11.2	71.7
La																		0.09	99.9
Ce																0.19		0.25		88.5
	141	142	143	144	145	146	147	148	149	150	151	152	153	154	155	156	157	158	159	160
Ce		11.1
Pr	100
Nd		27.1	12.2	23.8	8.30	17.2		5.76		5.64
Sm				3.1			15.0	11.3	13.8	7.4		26.7		22.7
Eu											47.8		52.2
Gd												0.20		2.18	14.8	20.5	15.7	24.8		21.9
Tb																			100
Dy																0.06		0.10		2.34
	161	162	163	164	165	166	167	168	169	170	171	172	173	174	175	176	177	178	179	180
Dy	18.9	25.5	24.9	28.2
Ho					100
Er		0.14		1.61		33.6	23.0	26.8		14.9
Tm									100
Yb								0.13		3.05	14.3	21.9	16.1	31.8		12.7
Lu															97.4	2.59
Hf														0.16		5.2	18.6	27.1	13.7	35.2
Ta																				0.01
W																				0.13
	181	182	183	184	185	186	187	188	189	190	191	192	193	194	195	196	197	198	199	200
Ta	100
W		26.3	14.3	30.7		28.6
Re					37.4		62.6
Os				0.02		1.58	1.6	13.3	16.1	26.4		41.0
Ir											37.3		62.7
Pt										0.01		0.79		32.9	33.8	25.3		7.2
Au																	100
Hg																0.15		10.1	17	23.1
	201	202	203	204	205	206	207	208	209	...	228	232	233	234	235	236	237	238	239	240
Hg	13.2	29.7		6.8
Tl			29.5		70.5
Pb				1.4		24.1	22.1	52.4
Bi									100
Th												100
U														0.01	0.72			99.3