Measurement

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Across
  1. 3. Determines light's brightness
  2. 4. An expression of the uncertainty
  3. 6. System gains energy
  4. 8. Type of energy
  5. 10. Determined by extent of systematic errors
  6. 11. A unit of energy
  7. 12. Emission from unstable atoms
  8. 15. Characteristic manner of wave interaction
  9. 18. Component of cathode rays
  10. 20. No, no! We can't have the same number!
  11. 21. Transition from low to high (energy states)
Down
  1. 1. Famous statement of complementarity
  2. 2. Have no uncertainty
  3. 5. Reproducibility in measurements
  4. 7. Determinant of orbital shapes
  5. 9. SI unit
  6. 10. Up! Up! Up!
  7. 13. Independent of amount
  8. 14. The reason for sub-level energy differention
  9. 16. Differ in nuclear component
  10. 17. An important prefix multiplier
  11. 19. Unit of mass