Question

Which scientist arranged the elements in the
three elements) -
form
of triads (group
To​

Answer 1

Explanation:

Johann Dobereiner

In 1829, a German chemist, Johann Dobereiner (1780–1849), placed various groups of three elements into groups called triads

Answer 2

Answer:

Johann Dobereiner

In 1829, a German chemist, Johann Dobereiner (1780–1849), placed various groups of three elements into groups called triads.

Explanation:

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