Chemistry 5070 · O Level · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

Palladium is an element with atomic number 46. From where it is placed in the Periodic Table, some of its properties, together with the properties of its compounds, can be predicted. Which row is correct?

  • AIts density is similar to the density of sodium. / Some of them can act as catalysts.
  • BIts density is similar to the density of sodium. / They are white in the solid state.
  • CIt is present in compounds in more than one oxidation state. / Some of them can act as catalysts.
  • DIt is present in compounds in more than one oxidation state. / They are white in the solid state.

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