MCQ
Which important property did Mendeleev use to classify the elements in his periodic table?
- ✓Atomic weight.
- BAtomic number.
- CMelting point.
- DNone of these.
✓
Answer
Correct option: A.
Atomic weight.
Mendeleev's used atomic weight as the basis of classification of elements in the periodic table. He arranged $63$ elements known at that time in the periodic table on the basis of the order of their increasing atomic weights and he placed elements with similar nature in same group.
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