MCQ
Which of the following property of an element never changes?
- AValency
- BAtomic weight
- CBoth A and B
- DNone of the above
✓
Answer
- Atomic weight
Explanation:
The atomic weight is a characteristic property of an element and can never vary.
The valency of an element can vary. For example, when the ion is in +2 and +3 oxidation state, its valency is 2 and 3 respectively.
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