Class 9 Chemistry MCQs - Chapter 7
Structure of Atoms Quiz Questions & Answers PDF Download - 3
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Structure of Atoms Exam Questions and Answers PDF Download: Test 3
The lowest energy orbital among the following is
- 2s
- 2p
- 3s
- 3p
When Uranium-238 emits α particles it decays in to
- Helium
- Carbon
- Thorium-234
- Uranium-235
D sub-shell can accommodate maximum
- 2 electrons
- 10 electrons
- 14 electrons
- 6 electrons
Chlorine-35 exists in nature about
- 0.35
- 0.4
- 0.5
- 0.75
Protium has
- one neutron
- two neutrons
- no neutron
- 3 neutrons
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