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Chemistry
9th -
12thgrade
Development of the Quantum Mechanical Model + Vocab (Gen)
15 questions
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- 1. Multiple ChoiceDefine "quantized"The electron's mass is very small.The electron is actually a wave.The position & momentum of the electron cannot be known at the same time.The electron is limited to certain positions in the atom.
- 2. Multiple Choice"Energy is quantized."PlanckHeisenbergde BroglieRutherford
- 3. Multiple Choice"wave theory"PlanckHeisenbergde BroglieBohr
- 4. Multiple Choice"Electrons have particle and wave-like properties."PlanckHeisenbergde BroglieBohr
- 5. Multiple ChoiceWhy are we not allowed to know the position and momentum of the electron?the size of the nucleusthe electron's mass is too smallthe electron behaves like a waveit moves too fast
- 6. Multiple ChoiceThe position & momentum of the electron cannot be known at the same time.PlanckHeisenbergde BroglieDalton
- 7. Multiple ChoiceWhy do we not use Bohr's planetary model today?it is too specific; we are not allowed to know the electron's specific locationit represented the nucleus far too largelyit is too vague; we have more specific information to use nowit placed the electrons too close to the nucleus
- 8. Multiple ChoiceNo two elements have the same line spectrum.TrueFalse
- 9. Multiple ChoiceHow is the Quantum Mechanical Model different from Bohr's planetary model?The QMM shows the probability of the electron's location.The planetary model shows the probability of the electron's location.The QMM shows the exact location of the electron.The QMM does not include a nucleus.
- 10. Multiple Choicerepresents the distance the electrons are from the nucleusenergy levelsublevel
- 11. Multiple Choicerepresents an area of probability of the electron's location, called s, p, d, or fenergy levelsublevel
- 12. Multiple Choice"There are two electrons maximum in an orbital."aufbau principleHund's RulePauli Exclusion PrincipleUncertainty Principle
- 13. Multiple Choice"Electrons fill equal energy orbitals singly before pairing."aufbau principleHund's RulePauli Exclusion PrincipleUncertainty Principle
- 14. Multiple Choice"Electrons fill lower energy orbitals before filling higher energy orbitals."aufbau principleHund's RulePauli Exclusion PrincipleUncertainty Principle
- 15. Multiple Choice"Electrons in the same orbital have opposite spin."aufbau principleHund's RulePauli Exclusion PrincipleUncertainty Principle
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