5 Questions
Which classification method did Dobereiner use to group elements?
Atomic weights
What is the defining characteristic of a triad according to Dobereiner?
Similar chemical properties
What is the atomic weight of the middle element in the Iron-Cobalt-Nickel triad?
58.71
Which elements form the Chlorine-Bromine-Iodine triad?
Chlorine, Bromine, Iodine
What is the atomic weight of Sodium?
23
Test your knowledge on the historical development of the periodic table in this quiz. Learn about Dobereiner's triads and the classification of elements based on their properties.
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