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United StatesChemistryQuick questions

Unit 1: Atomic Structure and Properties

Quick questions on Photoelectron spectroscopy - AP Chemistry Unit 1

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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A PES spectrum has two peaks of equal height at high binding energy and one shorter peak at low binding energy, in the ratio 2:2:12 : 2 : 1. Identify the element. [2 points]
What is q2?
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Explain why the 1s1s peak appears at higher binding energy than the 2s2s peak. [1 point]

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