F word puzzle #shorts

In a crossword puzzle 10 words are to be guessed of which 5 words have each an alternative solution also.No.of possible solutions is

Solve the following crossword puzzle with the help of the given clues :

Select the word which means the same as the group of words given. A short stay at a place

a) In this crossword puzzle (Figure), names of 11 elements are hidden. Symbols of these are given below. Complete the puzzle. 1. Cl, 2) H 3) Ar, 4) O, 5) Xe, 6) N, 7) He, 8) F, 9) Kr, 10) Rn, 11) Ne b) Identify the total number of inert gases, their names and symbols from this crossword puzzle.