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Upto which element, the law of octaves w...

Upto which element, the law of octaves was found to be applicable ?

A

Oxygen

B

Calcium

C

Cobalt

D

Potassium

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Law of Octaves**: The law of octaves, proposed by John Newlands, states that when elements are arranged in order of increasing atomic weight, every eighth element has similar properties to the first. This was an early attempt to classify elements based on their chemical properties. 2. **Limitations of the Law**: Newlands' law of octaves was primarily applicable to lighter elements. This means that it worked well for elements with lower atomic weights. 3. **Identifying the Boundary Element**: The law was found to be applicable up to the element with an atomic weight of 40, which corresponds to calcium (Ca). 4. **Conclusion**: Therefore, according to Newlands' law of octaves, the law was applicable up to calcium, which is the element with atomic weight 40. Beyond calcium, the law does not hold true for heavier elements. ### Final Answer: The law of octaves was found to be applicable up to calcium (Ca), which has an atomic weight of 40. ---
### Step-by-Step Solution: 1. **Understanding the Law of Octaves**: The law of octaves, proposed by John Newlands, states that when elements are arranged in order of increasing atomic weight, every eighth element has similar properties to the first. This was an early attempt to classify elements based on their chemical properties. 2. **Limitations of the Law**: Newlands' law of octaves was primarily applicable to lighter elements. This means that it worked well for elements with lower atomic weights. 3. **Identifying the Boundary Element**: The law was found to be applicable up to the element with an atomic weight of 40, which corresponds to calcium (Ca). ...
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