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  9. Q577

RRB Group D (Level-1 posts) 2022 · Question 577 of 598

The octaves of Newland begin with _______ and end with _______.

  1. AH; ThCorrect
  2. BLi; Na
  3. CHe; Ar
  4. DMg; Ca

Answer: A. H; Th

Explanation

Newland's Law of Octaves states that every eighth element has similar properties when arranged in increasing atomic mass. The octaves start with Hydrogen (H) and end with Thorium (Th).

Source: RRB Group D 2022 Prev. Yr. Paper (22 Aug 2022) (Shift 1) - FreshersNow · reliable-secondary

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