Chemical elements online puzzle

4x2 - 8 pieces7x4 - 28 pieces9x5 - 45 pieces12x7 - 84 pieces14x8 - 112 pieces16x9 - 144 pieces19x11 - 209 pieces30x17 - 510 pieces42x24 - 1008 pieces Start a new game

By arranging these puzzles, you show us that they are worth showing to more visitors. Until they become more popular, they are partially hidden.

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For University for academic purposes

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