Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

The table gives data about atoms of three separate elements. What are the values of W, X, Y and Z?

  • AW = 18, X = 35, Y = 18, Z = 19
  • BW = 18, X = 36, Y = 18, Z = 19
  • CW = 19, X = 35, Y = 19, Z = 18
  • DW = 19, X = 36, Y = 19, Z = 18

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