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Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 5: Chemical Bonding and Structure of Materials - Question 21

Cambridge Secondary (7-9) · Unit 5: Chemical Bonding and Structure of Materials

Question 21

Tick (✓) the correct answer.

The negatively charged particles in an atom are called:
  1. electrons
  2. protons
  3. neutrons
  4. elements
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