PDF chapter test TRY NOW
Identify the three related matching word answers:
Example:
Dobereiner :: German :: Law of triads
Answer variants:
\(79.9\)
Lithium
Groups
Vertical rows
Seven
Bromine
Triad Group (\(2\))
Hint Select the group, example element and their mass.
Option I - :: ::
Hint Select number of rows, on their position named as.
Option II - :: ::
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