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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Johann proposed "Law of Triads"- triads (3) of elements- middle element- average of outside ones (19 h 40 m, 2 ene 1829 año – 21 h 30 m, 1 ene 1830 año)

Descripción:

Halogen Triad- Chlorine, Bromine, Iodine
Alkali Metal Triad- Lithium, Sodium, Potassium

Añadido al timeline:

History of the Periodic Table

BySonya Callendar
26 dic 2017
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0
684

fecha:

19 h 40 m, 2 ene 1829 año
21 h 30 m, 1 ene 1830 año
~ 12 months

Fotos:

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