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SubjectPaid lesson

Iron

ClassNotes Team 11 MIN READUPDATED 5 JUL 2026

CHEMISTRY SSS3 First term

WEEK 5

Iron

Performance objectives

Students should be able to:

  1. Explain the extraction of iron.
  2. Give at least three uses of iron.
  3. Explain rusting of iron and also ways of preventing rusting of iron.

Content

Iron

Iron (Fe), chemical element, metal of Group 8 (VIIIb) of the periodic table, the most-used, and cheapest metal.

Iron makes up 5 percent of Earth’s crust and is second in abundance to aluminum among the metals and fourth in abundance behind oxygensilicon, and aluminum among the elements. Iron, which is the chief constituent of Earth’s core, is the most abundant element in Earth as a whole (about 35 percent) and is relatively plentiful in the Sun and…