Atom Properties Mcqs|PPSC Prepration
Chemistry Overall!
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Atom Properties Mcqs|PPSC Prepration
21 просмотр · 2 нед. назад
Chemistry Overall!
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21 просмотр · 2 нед. назад
Atom Properties Explained: Thomson, Millikan, and Rutherford
In this video, I explain three important atomic structure MCQs step by step, with pictures, so even a first-time learner can understand why each option is right or wrong.
What you will learn:
J.J. Thomson's cathode ray experiment: why cathode rays are negative electrons, and why their e/m ratio does NOT depend on the gas
How electric and magnetic forces are balanced to find the speed of the particles (v = E/B)
Millikan's oil drop experiment: how the charge on the electron is measured, and how the mass of the electron follows from it
Rutherford's gold foil experiment: what the alpha particles showed about the nucleus, and why electrons (not protons) are outside it
Timestamps:
00:00 Introduction
00:00 Thomson and cathode rays (MCQ 1)
00:00 Millikan's oil drop experiment (MCQ 2)
00:00 Rutherford's nuclear model (MCQ 3)
00:00 Summary
Need help or tutoring?
For tutoring or any questions about these topics, email me:
bilal.maryam.kfc@gmail.com
If this video helped you, please like, share, and subscribe, and tell me in the comments which topic you want next.
#AtomicStructure #ChemistryMCQs #Rutherford