Average Errors in Heats of Formation and Geometries of Solids, per element

	Heats of Formation (Kcal/mol)				Geometric Error (Arb. Units)
Element	PM7	No. in set	PM6	No. in set	PM7	PM6
All solids,	14.92	670	559.05	670	22.42	33.30
Hydrogen	10.04	144	44.17	144	19.81	29.34
Helium	0.10	1	0.00	1	0.00	0.00
Lithium	16.19	22	31.89	22	22.26	27.25
Beryllium	12.58	13	60.35	13	22.71	22.18
Boron	8.65	20	24.16	20	18.38	32.58
Carbon	12.23	120	2503.92	120	19.97	28.34
Nitrogen	12.73	75	42.30	75	19.46	27.14
Oxygen	15.19	313	1065.89	313	20.50	31.39
Fluorine	21.33	54	107.35	54	27.72	38.04
Neon	1.52	1	0.08	1	0.00	71.31
Sodium	12.67	27	49.62	27	21.85	39.98
Magnesium	12.80	21	50.78	21	19.78	23.10
Aluminum	17.73	23	67.62	23	19.19	27.18
Silicon	14.27	30	60.90	30	16.40	25.90
Phosphorus	22.40	27	73.67	27	25.14	32.86
Sulfur	15.18	55	151.42	55	20.17	29.54
Chlorine	15.29	74	77.68	74	22.52	32.58
Argon	0.55	1	0.14	1	23.83	23.82
Potassium	22.47	40	48.56	40	20.51	33.69
Calcium	19.72	18	47.23	18	19.46	21.14
Scandium	4.32	5	52.61	5	24.68	24.48
Titanium	17.07	20	67.83	20	19.89	30.14
Vanadium	9.20	6	110.14	6	26.37	31.48
Chromium	13.98	13	168.68	13	25.26	32.71
Manganese	18.51	14	131.30	14	33.79	30.18
Iron	23.27	18	101.12	18	25.88	35.42
Cobalt	23.94	12	26731.42	12	21.12	74.32
Nickel	8.67	10	47.02	10	28.72	37.42
Copper	12.12	13	39.30	13	20.21	34.51
Zinc	15.71	12	130.47	12	18.32	25.97
Gallium	7.57	7	41.46	7	20.83	30.73
Germanium	6.71	4	10.61	4	20.72	21.94
Arsenic	12.64	9	30.71	9	25.56	35.76
Selenium	10.74	2	16.61	2	24.16	34.50
Bromine	11.95	60	51.91	60	21.47	32.96
Krypton	0.92	1	0.01	1	31.43	55.06
Rubidium	9.50	13	25.08	13	34.05	43.71
Strontium	13.18	14	46.73	14	25.37	32.24
Yttrium	18.29	5	37.57	5	16.95	35.86
Zirconium	19.25	11	201.01	11	21.03	40.57
Niobium	10.24	6	49.64	6	22.54	31.62
Molybdenum	11.17	10	285.77	10	21.81	36.60
Technetium	4.48	1	188.13	1	21.41	36.55
Ruthenium	14.89	5	78.10	5	24.35	47.46
Rhodium	19.54	3	243.17	3	22.04	59.02
Palladium	6.66	4	33.78	4	28.64	30.16
Silver	30.04	10	556.73	10	50.00	81.48
Cadmium	7.55	12	87.93	12	21.63	40.84
Indium	7.10	5	17.21	5	20.37	21.93
Tin	15.52	8	40.87	8	29.17	28.55
Antimony	18.84	8	17.01	8	26.86	32.72
Tellurium	18.60	6	138.16	6	20.78	35.66
Iodine	12.84	56	64.07	56	21.51	35.15
Xenon	8.76	2	44.33	2	41.18	78.89
Cesium	19.48	10	36.81	10	26.62	40.98
Barium	15.97	17	196.96	17	16.99	45.95
Lanthanum	20.61	5	792.27	5	25.03	45.39
Cerium	-	-	-	-	14.47	17.97
Praseodymium	-	-	-	-	15.37	16.50
Neodymium	-	-	-	-	17.88	22.69
Samarium	-	-	-	-	15.39	17.93
Europium	-	-	-	-	15.06	22.82
Gadolinium	-	-	-	-	26.08	21.68
Terbium	-	-	-	-	15.45	20.67
Dysprosium	-	-	-	-	18.82	22.19
Holmium	-	-	-	-	22.63	24.04
Erbium	-	-	-	-	18.00	18.69
Thulium	-	-	-	-	15.87	22.56
Ytterbium	-	-	-	-	19.40	18.47
Lutetium	21.91	3	270.57	3	25.33	27.73
Hafnium	20.23	4	70.08	4	19.68	54.24
Tantalum	21.87	5	120.43	5	33.30	30.84
Tungsten	20.61	14	105.74	14	24.51	40.18
Rhenium	22.39	4	216.62	4	18.93	31.34
Osmium	10.84	3	211.12	3	23.13	25.05
Iridium	10.55	6	753.69	6	20.78	62.47
Platinum	17.94	6	39.03	6	18.84	29.52
Gold	20.84	7	39.49	7	33.26	40.07
Mercury	14.23	18	58.09	18	25.08	42.71
Thallium	12.50	11	50.10	11	24.96	49.65
Lead	21.49	20	59.34	20	21.83	38.84
Bismuth	19.44	10	21.71	10	31.66	41.23