- Science/ Chemistry/ Elements/ Aluminum@ (8)
- Science/ Chemistry/ Elements/ Bismuth@ (8)
- Science/ Chemistry/ Elements/ Gallium@ (7)
- Science/ Chemistry/ Elements/ Indium@ (8)
|
- Science/ Chemistry/ Elements/ Lead@ (8)
- Science/ Chemistry/ Elements/ Thallium@ (7)
- Science/ Chemistry/ Elements/ Tin@ (8)
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