Basiskennis chemie/Periodiek systeem in 1869
| De elementen die 1869 bekend waren in het periodiek systeem. | ||||||||||||||||||
| 1 Ia |
goede voorspelling | 18 0 | ||||||||||||||||
| 1 | H 1.0 |
2 IIa |
omgewisseld ivm eigenschappen | 13 IIIa |
14 IVa |
15 Va |
16 VIa |
17 VIIa |
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| 2 | Li 6.9 |
Be 9.0 |
B 10.8 |
C 12.0 |
N 14.0 |
O 16.0 |
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| 3 | Na 23.0 |
Mg 24.3 |
3 IIIb |
4 IVb |
5 Vb |
6 VIb |
7 VIIb |
8 VIIIb |
9 VIIIb |
10 VIIIb |
11 Ib |
12 IIb |
Al 27.0 |
Si 28.1 |
P 31.0 |
S 32.1 |
Cl 35.5 |
|
| 4 | K 39.1 |
Ca 40.1 |
Ti 45.0 |
V 50.9 |
Cr 52.0 |
Mn 54.9 |
Fe 55.9 |
Co 58.9 |
Ni 58.7 |
Cu 63.6 |
Zn 65.4 |
As 74.9 |
Se 79.0 |
Br 79.9 |
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| 5 | Rb 85.5 |
Sr 87.6 |
Y 88.9 |
Zr 91.2 |
Nb 92.9 |
Mo 95.9 |
Ru 101.1 |
Rh 102.9 |
Pd 106.4 |
Ag 107.9 |
Cd 112.4 |
In 114.8 |
Sn 118.7 |
Sb 121.8 |
Te 127.6 |
I 126.9 |
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| 6 | Cs 132.9 |
Ba 137.3 |
* |
Ta 180.9 |
W 183.9 |
Os 190.2 |
Ir 192.2 |
Pt 195.1 |
Au 197.0 |
Hg 200.6 |
Tl 204.4 |
Pb 207.2 |
Bi 209.0 |
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| 7 | ** |
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| *Lanthaniden | La 138.9 |
Ce 140.1 |
Sm 150.4 |
Tb 159.9 |
Er 167.3 |
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| **Actiniden | Th 232.0 |
U 238.0 |
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