| Atomic
number |
Symbol |
Name |
Molar mass |
Density |
Melting point |
Boiling point |
Electronegativity (Pauling) |
Molar heat capacity |
Enthalpy of fusion |
Enthalpy of
vaporization |
Standard molar
entropy |
1st Ionization |
2nd Ionization |
3rd Ionization |
Atomic radius |
Ionic radius |
| 1 |
H |
Hydrogen |
1.0079 |
0.089 |
-259 |
-253 |
2.2 |
20.784 |
0.12 |
0.46 |
114.71 |
1310 |
|
|
78 |
154 |
| 2 |
He |
Helium |
4 |
0.12 |
|
-269 |
|
20.786 |
0.021 |
0.082 |
126.15 |
2370 |
5259 |
|
128 |
|
| 3 |
Li |
Lithium |
6.94 |
0.53 |
181 |
1347 |
1 |
24.77 |
4.6 |
134.7 |
29.12 |
519 |
7297 |
11810 |
157 |
58 |
| 4 |
Be |
Beryllium |
9.01 |
1.85 |
1285 |
2470 |
1.6 |
16.44 |
9.8 |
308.8 |
9.5 |
900 |
1757 |
14849 |
112 |
27 |
| 5 |
B |
Boron |
10.81 |
2.47 |
2030 |
3700 |
2 |
|
22.2 |
538.9 |
5.86 |
799 |
2427 |
3660 |
88 |
12 |
| 6 |
C |
Carbon |
12.01 |
2.27 |
3700 |
|
2.6 |
8.527 |
105.1 |
710.9 |
5.74 |
1090 |
2352 |
4620 |
77 |
260 |
| 7 |
N |
Nitrogen |
14.01 |
1.04 |
-210 |
-196 |
3 |
20.786 |
0.72 |
5.577 |
153.3 |
1400 |
2856 |
4577 |
74 |
171 |
| 8 |
O |
Oxygen |
16 |
1.46 |
-218 |
-183 |
3.4 |
21.912 |
0.444 |
6.82 |
161.06 |
1310 |
3388 |
5300 |
66 |
140 |
| 9 |
F |
Fluorine |
19 |
1.51 |
-220 |
-188 |
4 |
22.74 |
5.1 |
6.548 |
202.78 |
1680 |
3374 |
6050 |
64 |
133 |
| 10 |
Ne |
Neon |
20.18 |
1.44 |
-249 |
-246 |
|
20.786 |
0.324 |
1.736 |
146.33 |
2080 |
3952 |
6122 |
|
|
| 11 |
Na |
Sodium |
22.99 |
0.97 |
98 |
883 |
0.93 |
28.24 |
2.64 |
89.04 |
51.21 |
494 |
4562 |
6911 |
191 |
102 |
| 12 |
Mg |
Magnesium |
24.31 |
1.74 |
650 |
1100 |
1.3 |
24.89 |
9.04 |
128.7 |
32.68 |
736 |
1450 |
7732 |
160 |
72 |
| 13 |
Al |
Aluminum |
26.98 |
2.7 |
660 |
2350 |
1.6 |
24.35 |
10.67 |
293.72 |
28.33 |
577 |
1817 |
2744 |
143 |
53 |
| 14 |
Si |
Silicon |
28.09 |
2.33 |
1410 |
2620 |
1.9 |
20 |
39.6 |
383.3 |
18.83 |
786 |
1577 |
3231 |
118 |
26 |
| 15 |
P |
Phosphorus |
30.97 |
1.82 |
44 |
280 |
2.2 |
23.84 |
2.51 |
51.9 |
41.09 |
1011 |
1903 |
2912 |
110 |
212 |
| 16 |
S |
Sulfur |
32.06 |
2.09 |
115 |
445 |
2.6 |
22.64 |
1.23 |
9.62 |
31.8 |
1000 |
2251 |
3361 |
104 |
184 |
| 17 |
Cl |
Chlorine |
35.45 |
1.66 |
-101 |
-34 |
3.2 |
21.84 |
6.41 |
20.4033 |
165.2 |
1255 |
2296 |
3826 |
99 |
181 |
| 18 |
Ar |
Argon |
39.95 |
1.66 |
-189 |
-186 |
|
20.786 |
1.21 |
6.53 |
154.84 |
1520 |
2665 |
3928 |
174 |
|
| 19 |
K |
Potassium |
39.1 |
0.86 |
64 |
774 |
0.82 |
29.58 |
2.4 |
77.53 |
64.18 |
418 |
3051 |
4410 |
235 |
138 |
| 20 |
Ca |
Calcium |
40.08 |
1.53 |
840 |
1490 |
1.3 |
25.31 |
9.33 |
149.95 |
41.42 |
590 |
1145 |
4910 |
197 |
100 |
| 21 |
Sc |
Scandium |
44.96 |
2.99 |
1540 |
2800 |
1.4 |
|
15.9 |
304.8 |
|
631 |
1235 |
2389 |
164 |
83 |
| 22 |
Ti |
Titanium |
47.9 |
4.51 |
1660 |
3300 |
1.5 |
|
20.9 |
428.9 |
|
658 |
1310 |
2651 |
147 |
80 |
| 23 |
V |
Vanadium |
50.94 |
6.11 |
1920 |
3400 |
1.6 |
|
17.6 |
458.6 |
|
650 |
1414 |
2828 |
135 |
72 |
| 24 |
Cr |
Chromium |
52 |
7.19 |
1860 |
2600 |
1.7 |
23.35 |
15.3 |
348.78 |
23.77 |
653 |
1592 |
2987 |
129 |
84 |
| 25 |
Mn |
Manganese |
54.94 |
7.47 |
1250 |
2120 |
1.6 |
|
14.4 |
219.7 |
|
717 |
1509 |
3249 |
137 |
91 |
| 26 |
Fe |
Iron |
55.85 |
7.87 |
1540 |
2760 |
1.8 |
25.1 |
14.9 |
351 |
27.28 |
759 |
1561 |
2957 |
128 |
82 |
| 27 |
Co |
Cobalt |
58.93 |
8.8 |
1494 |
2900 |
1.9 |
|
15.2 |
382.4 |
|
760 |
1646 |
3232 |
125 |
82 |
| 28 |
Ni |
Nickel |
58.71 |
8.91 |
1455 |
2150 |
1.9 |
|
17.6 |
371.8 |
|
737 |
1753 |
3392 |
125 |
78 |
| 29 |
Cu |
Copper |
63.54 |
8.93 |
1083 |
2567 |
1.9 |
33.15 |
13 |
304.6 |
33.15 |
785 |
1958 |
3555 |
128 |
72 |
| 30 |
Zn |
Zinc |
65.37 |
7.14 |
420 |
907 |
1.6 |
25.4 |
6.67 |
115.3 |
41.63 |
906 |
1733 |
3832 |
137 |
83 |
| 31 |
Ga |
Gallium |
69.72 |
5.91 |
30 |
2070 |
1.6 |
|
5.59 |
256.1 |
|
577 |
1979 |
2963 |
153 |
62 |
| 32 |
Ge |
Germanium |
72.59 |
5.32 |
937 |
2830 |
2 |
|
34.7 |
334.3 |
|
784 |
1537 |
3302 |
122 |
90 |
| 33 |
As |
Arsenic |
74.92 |
5.78 |
613 |
|
2.2 |
24.64 |
27.7 |
31.9 |
35.1 |
947 |
1798 |
2734 |
121 |
222 |
| 34 |
Se |
Selenium |
78.96 |
4.81 |
220 |
685 |
2.6 |
|
5.1 |
26.32 |
|
941 |
2044 |
2974 |
104 |
198 |
| 35 |
Br |
Bromine |
79.91 |
3.12 |
-7 |
59 |
3 |
75.689 |
10.8 |
30 |
152.23 |
1140 |
2103 |
3500 |
114 |
196 |
| 36 |
Kr |
Krypton |
83.8 |
3 |
-157 |
-153 |
|
20.786 |
1.64 |
9.05 |
164.08 |
1350 |
2349 |
3565 |
|
169 |
| 37 |
Rb |
Rubidium |
85.47 |
1.53 |
39 |
688 |
0.82 |
|
2.2 |
69.2 |
|
402 |
2632 |
3900 |
250 |
149 |
| 38 |
Sr |
Strontium |
87.62 |
2.58 |
770 |
1380 |
0.95 |
|
9.16 |
138.91 |
|
548 |
1064 |
4210 |
215 |
116 |
| 39 |
Y |
Yttrium |
88.91 |
4.48 |
1510 |
3300 |
1.2 |
|
17.2 |
393.3 |
|
616 |
1181 |
1980 |
182 |
106 |
| 40 |
Zr |
Zirconium |
91.22 |
6.51 |
1850 |
4400 |
1.3 |
|
23 |
581.6 |
|
660 |
1267 |
2218 |
160 |
109 |
| 41 |
Nb |
Niobium |
92.91 |
8.58 |
2425 |
5000 |
1.6 |
|
27.2 |
696.6 |
|
664 |
1382 |
2416 |
147 |
74 |
| 42 |
Mo |
Molybdenum |
95.94 |
10.22 |
2620 |
4830 |
2.2 |
|
27.6 |
594.1 |
|
685 |
1558 |
2621 |
140 |
92 |
| 43 |
Tc |
Technetium |
98.91 |
11.5 |
2200 |
4600 |
1.9 |
|
23.81 |
585.22 |
|
702 |
1471 |
2850 |
135 |
95 |
| 44 |
Ru |
Ruthenium |
101.07 |
12.36 |
2310 |
4100 |
2.2 |
|
23.7 |
567.8 |
|
711 |
1617 |
2747 |
134 |
77 |
| 45 |
Rh |
Rhodium |
102.91 |
12.42 |
1963 |
3700 |
2.3 |
|
21.55 |
495.4 |
|
720 |
1743 |
2997 |
134 |
86 |
| 46 |
Pd |
Palladium |
106.4 |
12 |
1554 |
3000 |
2.2 |
|
17.2 |
393.3 |
|
805 |
1875 |
3176 |
137 |
86 |
| 47 |
Ag |
Silver |
107.87 |
10.5 |
962 |
2212 |
1.9 |
25.351 |
11.3 |
255.1 |
42.55 |
731 |
2072 |
3361 |
144 |
113 |
| 48 |
Cd |
Cadmium |
112.4 |
8.65 |
321 |
765 |
1.7 |
25.98 |
6.11 |
99.87 |
51.76 |
868 |
1631 |
3615 |
152 |
103 |
| 49 |
In |
Indium |
114.82 |
7.29 |
157 |
2050 |
1.8 |
|
3.27 |
226.4 |
|
556 |
1821 |
2704 |
167 |
72 |
| 50 |
Sn |
Tin |
118.69 |
7.29 |
232 |
2720 |
2 |
26.99 |
7.2 |
290.4 |
|
707 |
1412 |
2943 |
158 |
93 |
| 51 |
Sb |
Antimony |
121.75 |
6.69 |
631 |
1750 |
2.1 |
25.23 |
20.9 |
67.91 |
|
834 |
1794 |
2443 |
141 |
89 |
| 52 |
Te |
Tellurium |
127.6 |
6.25 |
450 |
990 |
2.1 |
|
13.5 |
50.63 |
|
870 |
1795 |
2698 |
137 |
221 |
| 53 |
I |
Iodine |
126.9 |
4.95 |
114 |
184 |
2.7 |
54.44 |
15.27 |
41.67 |
116.135 |
1008 |
1846 |
3199 |
133 |
220 |
| 54 |
Xe |
Xenon |
131.3 |
3.56 |
-112 |
-108 |
2.6 |
20.786 |
3.1 |
12.65 |
169.68 |
1170 |
2045 |
3097 |
218 |
190 |
| 55 |
Cs |
Cesium |
132.91 |
1.87 |
28 |
678 |
0.79 |
32.17 |
2.09 |
65.9 |
85.23 |
376 |
2420 |
3400 |
272 |
170 |
| 56 |
Ba |
Barium |
137.34 |
3.59 |
710 |
1640 |
0.89 |
28.07 |
7.66 |
150.9 |
62.8 |
502 |
965 |
3619 |
224 |
136 |
| 57 |
La |
Lanthanum |
138.91 |
6.17 |
920 |
2450 |
1.1 |
|
10.04 |
399.6 |
|
538 |
1067 |
1850 |
188 |
122 |
| 58 |
Ce |
Cerium |
140.12 |
6.71 |
800 |
3000 |
1.1 |
|
8.87 |
313.8 |
|
527 |
1047 |
1949 |
183 |
107 |
| 59 |
Pr |
Praseodynium |
140.91 |
6.78 |
935 |
3000 |
1.1 |
|
11.3 |
332.6 |
|
523 |
1018 |
2086 |
183 |
106 |
| 60 |
Nd |
Neodymium |
144.24 |
7 |
1024 |
3100 |
1.1 |
|
7.113 |
283.7 |
|
530 |
1035 |
1936 |
182 |
104 |
| 61 |
Pm |
Promethium |
146.92 |
7.22 |
1168 |
3300 |
|
|
12.6 |
|
|
536 |
1052 |
2150 |
181 |
106 |
| 62 |
Sm |
Samarium |
150.35 |
7.54 |
1060 |
1600 |
1.2 |
|
10.9 |
191.6 |
|
543 |
1068 |
2260 |
180 |
111 |
| 63 |
Eu |
Europium |
151.96 |
5.25 |
820 |
1450 |
|
|
10.5 |
175.7 |
|
547 |
1084 |
2403 |
204 |
112 |
| 64 |
Gd |
Gadolinium |
157.25 |
7.87 |
1310 |
3000 |
1.2 |
|
15.5 |
311.7 |
|
592 |
1167 |
1990 |
180 |
97 |
| 65 |
Tb |
Terbium |
158.92 |
8.27 |
1360 |
2500 |
|
|
16.3 |
391 |
|
565 |
1112 |
2114 |
178 |
93 |
| 66 |
Dy |
Dysprosium |
162.5 |
8.53 |
1410 |
2600 |
1.2 |
|
17.2 |
293 |
|
572 |
1126 |
2200 |
177 |
91 |
| 67 |
Ho |
Holmium |
164.93 |
8.8 |
1470 |
2300 |
1.2 |
|
17.2 |
251 |
|
581 |
1139 |
2204 |
177 |
89 |
| 68 |
Er |
Erbium |
167.26 |
9.04 |
1520 |
2600 |
1.2 |
|
17.2 |
292.9 |
|
589 |
1151 |
2194 |
176 |
89 |
| 69 |
Tm |
Thulium |
168.93 |
9.33 |
1550 |
2000 |
1.2 |
|
18.4 |
247 |
|
597 |
1163 |
2285 |
175 |
104 |
| 70 |
Yb |
Ytterbium |
173.04 |
6.97 |
824 |
1500 |
|
|
9.2 |
159 |
|
603 |
1176 |
2415 |
194 |
113 |
| 71 |
Lu |
Lutetium |
174.97 |
9.84 |
1700 |
3400 |
1.3 |
|
19.2 |
428 |
|
524 |
1340 |
2022 |
172 |
85 |
| 72 |
Hf |
Hafnium |
178.49 |
13.28 |
2230 |
5300 |
1.3 |
|
25.5 |
661.1 |
72 |
642 |
1440 |
2250 |
159 |
84 |
| 73 |
Ta |
Tantalum |
180.95 |
16.67 |
3000 |
5400 |
1.5 |
|
31.4 |
753.1 |
|
761 |
1500 |
2100 |
147 |
72 |
| 74 |
W |
Tungsten |
183.85 |
19.3 |
3387 |
5420 |
2.4 |
|
35.2 |
799.1 |
|
770 |
1700 |
2300 |
141 |
68 |
| 75 |
Re |
Rhenium |
186.2 |
21.02 |
3180 |
5600 |
1.9 |
|
33.1 |
707.1 |
|
760 |
1260 |
2510 |
137 |
72 |
| 76 |
Os |
Osmium |
190.2 |
22.58 |
3030 |
5000 |
2.2 |
|
29.3 |
627.6 |
|
840 |
1600 |
2400 |
135 |
89 |
| 77 |
Ir |
Iridium |
192.2 |
22.55 |
2447 |
4550 |
2.2 |
|
26.4 |
563.6 |
|
880 |
1680 |
2600 |
136 |
89 |
| 78 |
Pt |
Platinum |
195.09 |
21.45 |
1772 |
3720 |
2.3 |
|
19.7 |
510.5 |
|
870 |
1791 |
2800 |
139 |
85 |
| 79 |
Au |
Gold |
196.97 |
19.28 |
1064 |
2807 |
2.5 |
25.42 |
12.7 |
324.4 |
47.4 |
890 |
1980 |
2899 |
144 |
91 |
| 80 |
Hg |
Mercury |
200.59 |
13.55 |
-39 |
357 |
2 |
27.983 |
2.331 |
59.15 |
76.02 |
1007 |
1810 |
3300 |
155 |
112 |
| 81 |
Tl |
Thallium |
204.37 |
11.87 |
304 |
1460 |
2 |
|
4.31 |
162.1 |
|
590 |
1971 |
2878 |
171 |
88 |
| 82 |
Pb |
Lead |
207.19 |
11.34 |
328 |
1760 |
2.3 |
26.44 |
5.121 |
179.4 |
64.81 |
716 |
1450 |
3082 |
175 |
132 |
| 83 |
Bi |
Bismuth |
208.98 |
8.9 |
271 |
1650 |
2 |
25.52 |
10.48 |
179.1 |
56.74 |
703 |
1610 |
2466 |
182 |
96 |
| 84 |
Po |
Polonium |
210 |
9.4 |
254 |
960 |
2 |
|
10 |
100.8 |
|
1037 |
1800 |
2700 |
167 |
65 |
| 85 |
At |
Astatine |
210 |
|
300 |
350 |
2 |
|
23.8 |
|
|
1037 |
1600 |
2900 |
|
227 |
| 86 |
Rn |
Radon |
222 |
4.4 |
-71 |
-62 |
|
|
2.7 |
18.1 |
|
1036 |
|
|
|
|
| 87 |
Fr |
Francium |
223 |
|
27 |
677 |
0.7 |
|
|
|
|
400 |
2100 |
3100 |
270 |
180 |
| 88 |
Ra |
Radium |
226.03 |
5 |
700 |
1500 |
0.9 |
|
7.15 |
136.8 |
|
509 |
979 |
3300 |
223 |
152 |
| 89 |
Ac |
Actinium |
227.03 |
10.07 |
1230 |
3200 |
1.1 |
|
14.2 |
418 |
|
499 |
1145 |
1900 |
188 |
118 |
| 90 |
Th |
Thorium |
232.04 |
11.73 |
1700 |
4500 |
1.3 |
|
19.2 |
543.9 |
|
587 |
1147 |
1978 |
180 |
101 |
| 91 |
Pa |
Protactinium |
231.04 |
15.37 |
1200 |
4000 |
1.5 |
|
16.7 |
481 |
|
568 |
1129 |
1814 |
161 |
113 |
| 92 |
U |
Uranium |
238.03 |
18.95 |
1135 |
4000 |
1.4 |
|
15.5 |
422.6 |
|
584 |
1438 |
1843 |
138 |
103 |
| 93 |
Np |
Neptunium |
237.05 |
20.45 |
640 |
|
1.4 |
|
9.46 |
336.6 |
|
597 |
1129 |
1872 |
131 |
110 |
| 94 |
Pu |
Plutonium |
239.05 |
19.81 |
640 |
3200 |
1.3 |
|
2.8 |
343.5 |
|
585 |
1129 |
2103 |
151 |
108 |
| 95 |
Am |
Americium |
241.06 |
13.67 |
990 |
2600 |
1.3 |
|
14.4 |
284 |
|
578 |
1158 |
2161 |
184 |
107 |
| 96 |
Cm |
Curium |
247.07 |
13.3 |
1340 |
|
1.3 |
|
|
387 |
|
581 |
1196 |
2045 |
|
119 |
| 97 |
Bk |
Berkelium |
249.08 |
14.79 |
986 |
|
1.3 |
|
|
310 |
|
601 |
1187 |
2152 |
|
87 |
| 98 |
Cf |
Californium |
251.08 |
|
|
|
1.3 |
26 |
|
196 |
|
608 |
1206 |
2277 |
|
117 |
| 99 |
Es |
Einsteinium |
254.09 |
|
|
|
1.3 |
|
|
133 |
|
619 |
1216 |
2325 |
|
116 |
| 100 |
Fm |
Fermium |
257.1 |
|
|
|
1.3 |
|
|
|
|
627 |
1225 |
2354 |
|
115 |
| 101 |
Md |
Mendelevium |
258.1 |
|
|
|
1.3 |
|
|
|
|
635 |
1235 |
2451 |
|
114 |
| 102 |
No |
Nobelium |
255 |
|
|
|
1.3 |
|
|
|
|
642 |
1254 |
2605 |
|
113 |
| 103 |
Lr |
Lawrencium |
257 |
|
|
|
1.3 |
|
|
|
|
|
1428 |
2219 |
|
112 |
| 104 |
Rf |
Ruthefordium |
262.22 |
|
2673 |
6073 |
|
|
|
|
|
490 |
|
|
|
|
| 105 |
Db |
Dubnium |
262.11 |
|
|
|
|
|
|
|
|
640 |
|
|
|
|
| 106 |
Sg |
Seaborgium |
263.12 |
|
|
|
|
|
|
|
|
730 |
|
|
|
|
| 107 |
Nh |
Nielsbohrium |
262.12 |
|
|
|
|
|
|
|
|
660 |
|
|
|
|
| 108 |
Hs |
Hassium |
265 |
|
|
|
|
|
|
|
|
750 |
|
|
|
|
| 109 |
Mt |
Meitnerium |
266 |
|
|
|
|
|
|
|
|
840 |
|
|
|
|
| 110 |
Uun |
Ununnilium |
269 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 111 |
Uuu |
Unununium |
272 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 112 |
Uub |
Ununbium |
277 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 113 |
Uut |
Ununtrium |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|