German chemist John Doreiner was the first to indicate that there is a definite tendency in the properties of elements. In which year did he say this?
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Q:
German chemist John Doreiner was the first to indicate that there is a definite tendency in the properties of elements. In which year did he say this?
- 1In the early decades of 1800true
- 2In the early decades of 1900false
- 3In the early decades of 1700false
- 4None of thesefalse
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