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Atoms, Molecules and Radicals — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAtoms, Molecules and Radicals2 Marks
Question
State Dalton’s atomic theory.
✓

Answer

  1. Matter is made up of tiny particles called atoms
  2. Atoms are indivisible.
  3. Atom can be neither be created nor destroyed.
  4. Atoms of same element are identical in mass and properties
  5. Atoms of different elements differ in mass and properties

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