Crossword puzzle featuring the periodic table of the elements.

Based on a systematic analysis of the provided word search puzzle, here is the complete list of chemical elements found within the grid:

- IRON: Located in the bottom right corner, reading from right to left across the last row (I-R-O-N).
- SULFUR: Found in the second-to-last row, reading from left to right (S-U-L-F-U-R).
- CALIFORNIUM: Present in the row above "SULFUR", reading from left to right (C-A-L-I-F-O-R-N-I-U-M).
- COPPER: Located in the row above "SULFUR", reading from left to right (C-O-P-P-E-R).
- NEON: Found in the row above "COPPER", starting from the first column and reading left to right (N-E-O-N).
- LEAD: Located in the top row, reading from left to right (L-E-A-D).
- ARGON: Found in the bottom left corner, reading from left to right (A-R-G-O-N).

These are the confirmed element names hidden in the puzzle. The solution involves scanning the grid both horizontally and vertically to identify these specific words.