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Chemistry · Classification of Elements and Periodicity in Properties

हिन्दी

According to the IUPAC recommendations, the groups in the modern periodic table are numbered from 1 to 18, replacing the older notation. What was the older notation corresponding to Group 17?

  1. A
    VII A
  2. B
    VII B
  3. C
    VI A
  4. D
    VIII
View Answer & Solution

Correct answer · Option A

VII A

Explanation

Group 17 corresponds to the older notation VII A, while Group 18 corresponds to zero or VIII depending on historical classification.
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