Class 9 Chemistry MCQs - Chapter 7
Structure of Atoms Trivia Questions & Answers PDF Download - 4
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The Quiz: α particles are; "Structure of Atoms" App APK Download with answers: Doubly positively charged; Positively charged; Negatively charged; Doubly negatively charged; to learn online schools courses. Practice Atomic Structure Experiments MCQ Questions, download Kindle eBook (Free Sample) for free online courses.
Structure of Atoms Test Questions and Answers PDF Download: MCQ 4
α particles are
- positively charged
- doubly positively charged
- negatively charged
- doubly negatively charged
The energy of emitted light is equal to
- sum of energy levels
- difference between energies of orbits
- product of energies of orbits
- none of above
Atoms having same atomic number but different atomic mass are called
- derivatives
- isotopes
- elements
- isomers
Rutherford bombarded thin gold foil with
- α particles
- β particles
- γ particles
- neutrons
Iodine-123 is used to
- diagnose thyroid problem
- image the brain
- kill cancer cells
- trace the blood flow
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