MCQ
Which group of elements could be placed in Mendeleev's Periodic Table without disturbing the original order?
- AAlkali metals
- BAlkaline earth metals
- CNon - metals
- DNoble gases
✓
Answer
- Noble gases
Explanation:
According to Mendeleevs classification, the properties of elements are the periodic function of their atomic masses and there is a periodic recurrence of elements with similar physical and chemical properties.
Noble gas being inert, could be placed in a separate group without disturbing the original order.
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