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  • (a) In this crossword puzzle (Fig 3.2), names of 11 elements are hidden. Symbols of these are given below. Complete the puzzle.

(a) In this crossword puzzle (Fig 3.2), names of 11 elements are hidden. Symbols of these are given below. Complete the puzzle.
1. Cl        7. He
2. H         8. F
3. Ar        9. Kr
4. O        10. Rn
5. Xe       11. Ne
6. N

(b) Identify the total number of inert gases, their names and symbols from this cross word puzzle.

Answers (1)

Answer:

(a) 

(b) Six inert gases:
Helium (He); Neon ( Ne); Argon (Ar); Krypton (Kr); Xenon (Xe); Radon (Rn).

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