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The f-block elements

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Naming (R/S) isomers

making and doing

Mystery metal

Solve the clues to identify eight metals and reveal the name of a ninth. What is the symbol and atomic number of this mystery element?

1 The symbol for this metal is derived from its Latin name, stannum.

2 This element exists in seven different oxidation states (6, 4, 3, 2, 1, 0 and –1). The salts of this metal are brightly coloured, providing the origin of its name.

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Previous

The f-block elements

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Naming (R/S) isomers

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