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transitionmetal |
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| navigate by keyword : actinides arrangement atom atomic background blackboard board chalk chalkboard chart chemical chemistry collection color education element elements gas green group helium lab laboratory liquid mass mendeleev metal metals molecule noble number period periodic physics school science scientific solid standard structure symbol table tabular transition transitionmetal uranium vector weight whitebackground |
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| Chemical elements table on green school chalkboard with texture, seamless pattern |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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