These tables list values of molar ionization energies, measured in kJ⋅mol⁻¹. This is the energy per mole necessary to remove electrons from gaseous atoms or atomic ions. The first molar ionization energy applies to the neutral atoms. The second, third, etc., molar ionization energy applies to the further removal of an electron from a singly, doubly, etc., charged ion. For ionization energies measured in the unit eV, see Ionization energies of the elements (data page). All data from rutherfordium onwards is predicted.

1st-10th Ionization Energies

Zdroj:https://en.wikipedia.org?pojem=Molar_ionization_energies_of_the_elements
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Number	Symbol	Name	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
1	H	hydrogen	1312.0
2	He	helium	2372.3	5250.5
3	Li	lithium	520.2	7298.1	11,815.0
4	Be	beryllium	899.5	1757.1	14,848.7	21,006.6
5	B	boron	800.6	2427.1	3659.7	25,025.8	32,826.7
6	C	carbon	1086.5	2352.6	4620.5	6222.7	37,831	47,277.0
7	N	nitrogen	1402.3	2856	4578.1	7475.0	9444.9	53,266.6	64,360
8	O	oxygen	1313.9	3388.3	5300.5	7469.2	10,989.5	13,326.5	71,330	84,078.0
9	F	fluorine	1681.0	3374.2	6050.4	8407.7	11,022.7	15,164.1	17,868	92,038.1	106,434.3
10	Ne	neon	2080.7	3952.3	6122	9371	12,177	15,238.90	19,999.0	23,069.5	115,379.5	131,432
11	Na	sodium	495.8	4562	6910.3	9543	13,354	16,613	20,117	25,496	28,932	141,362
12	Mg	magnesium	737.7	1450.7	7732.7	10,542.5	13,630	18,020	21,711	25,661	31,653	35,458
13	Al	aluminium	577.5	1816.7	2744.8	11,577	14,842	18,379	23,326	27,465	31,853	38,473
14	Si	silicon	786.5	1577.1	3231.6	4355.5	16,091	19,805	23,780	29,287	33,878	38,726
15	P	phosphorus	1011.8	1907	2914.1	4963.6	6273.9	21,267	25,431	29,872	35,905	40,950
16	S	sulfur	999.6	2252	3357	4556	7004.3	8495.8	27,107	31,719	36,621	43,177
17	Cl	chlorine	1251.2	2298	3822	5158.6	6542	9362	11,018	33,604	38,600	43,961
18	Ar	argon	1520.6	2665.8	3931	5771	7238	8781	11,995	13,842	40,760	46,186
19	K	potassium	418.8	3052	4420	5877	7975	9590	11,343	14,944	16,963.7	48,610
20	Ca	calcium	589.8	1145.4	4912.4	6491	8153	10,496	12,270	14,206	18,191	20,385
21	Sc	scandium	633.1	1235.0	2388.6	7090.6	8843	10,679	13,310	15,250	17,370	21,726
22	Ti	titanium	658.8	1309.8	2652.5	4174.6	9581	11,533	13,590	16,440	18,530	20,833
23	V	vanadium	650.9	1414	2830	4507	6298.7	12,363	14,530	16,730	19,860	22,240
24	Cr	chromium	652.9	1590.6	2987	4743	6702	8744.9	15,455	17,820	20,190	23,580
25	Mn	manganese	717.3	1509.0	3248	4940	6990	9220	11,500	18,770	21,400	23,960
26	Fe	iron	762.5	1561.9	2957	5290	7240	9560	12,060	14,580	22,540	25,290
27	Co	cobalt	760.4	1648	3232	4950	7670	9840	12,440	15,230	17,959	26,570
28	Ni	nickel	737.1	1753.0	3395	5300	7339	10,400	12,800	15,600	18,600	21,670
29	Cu	copper	745.5	1957.9	3555	5536	7700	9900	13,400	16,000	19,200	22,400
30	Zn	zinc	906.4	1733.3	3833	5731	7970	10,400	12,900	16,800	19,600	23,000
31	Ga	gallium	578.8	1979.3	2963	6180
32	Ge	germanium	762	1537.5	3302.1	4411	9020
33	As	arsenic	947.0	1798	2735	4837	6043	12,310
34	Se	selenium	941.0	2045	2973.7	4144	6590	7880	14,990
35	Br	bromine	1139.9	2103	3470	4560	5760	8550	9940	18,600
36	Kr	krypton	1350.8	2350.4	3565	5070	6240	7570	10,710	12,138	22,274	25,880
37	Rb	rubidium	403.0	2633	3860	5080	6850	8140	9570	13,120	14,500	26,740
38	Sr	strontium	549.5	1064.2	4138	5500	6910	8760	10,230	11,800	15,600	17,100
39	Y	yttrium	600	1180	1980	5847	7430	8970	11,190	12,450	14,110	18,400
40	Zr	zirconium	640.1	1270	2218	3313	7752	9500
41	Nb	niobium	652.1	1380	2416	3700	4877	9847	12,100
42	Mo	molybdenum	684.3	1560	2618	4480	5257	6640.8	12,125	13,860	15,835	17,980
43	Tc	technetium	686.9[1]	1470	2850
44	Ru	ruthenium	710.2	1620	2747
45	Rh	rhodium	719.7	1740	2997
46	Pd	palladium	804.4	1870	3177
47	Ag	silver	731.0	2070	3361
48	Cd	cadmium	867.8	1631.4	3616
49	In	indium	558.3	1820.7	2704	5210
50	Sn	tin	708.6	1411.8	2943.0	3930.3	7456
51	Sb	antimony	834	1594.9	2440	4260	5400	10,400
52	Te	tellurium	869.3	1790	2698	3610	5668	6820	13,200
53	I	iodine	1008.4	1845.9	3180
54	Xe	xenon	1170.4	2046.4	3099.4
55	Cs	caesium	375.7	2234.3	3400
56	Ba	barium	502.9	965.2	3600
57	La	lanthanum	538.1	1067	1850.3	4819	5940
58	Ce	cerium	534.4	1050	1949	3547	6325	7490
59	Pr	praseodymium	527	1020	2086	3761	5551
60	Nd	neodymium	533.1	1040	2130	3900
61	Pm	promethium	540	1050	2150	3970
62	Sm	samarium	544.5	1070	2260	3990
63	Eu	europium	547.1	1085	2404	4120
64	Gd	gadolinium	593.4	1170	1990	4250
65	Tb	terbium	565.8	1110	2114	3839
66	Dy	dysprosium	573.0	1130	2200	3990
67	Ho	holmium	581.0	1140