Paper I · 2 General Science & Technology · 2.2 Chemistry in everyday life

2.2.1 Matter, atoms and the periodic table

Everything is made of atoms whose number of protons fixes the element, and the periodic table arranges the 118 known elements by atomic number so that elements in a group behave alike.

  • APPSC Paper I · Paper I
  • Standard level
  • 7 min read
  • Full course

Key terms

  • states of matter
  • atom
  • isotope
  • Rutherford
  • Bohr
  • Mendeleev
  • Moseley
  • periodic table
  • noble gases
  • radioactivity

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. AP angleStandard
  5. Mains writingMains writing
  6. Common trapsFoundation
  7. Quick revisionFoundation

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