Atomic Structure - Time of Flight Mass Spectrometry｜AQA A Level Chemistry Revision

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Physical Chemistry #3 (Year 1 Revision) 3.1.1 Atomic structure

This is intended to be an ultimate guide and revision video on the first section of the 3.1.1.2 Mass number and isotopes sub-topic under the 3.1.1 Atomic structure topic for the AQA A-Level chemistry specification. The aim of this video is to help all of you revise and prepare for your paper 1 and 3 exams.

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I teach you everything you need to know for the following points:
◼ The principles of a simple time of flight (TOF) mass spectrometer, limited to:
→ ionisation
→ acceleration to give constant kinetic energy
→ ion drift
→ ion detection
→ data analysis.
◼ The mass spectrometer gives accurate information about relative isotopic mass and also about the relative abundance of isotopes.
◼ Mass spectrometry can be used to identify elements.
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⏱ In this video we cover:
00:00 - What you need to know
00:35 - Lesson content
12:05 - Calculations and equations
15:27 - Active recall
18:56 - Spec check

📝 AQA A-level Chemistry Specification 📖
https://bit.ly/3Qn1Hqj

📚 Although this tutorial focuses on AQA, the concepts covered here are also applicable to other exam boards, such as OCR and Edexcel

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