Table of contents

1. The Chemical World9m
- The Scientific Method
  9m
2. Measurement and Problem Solving2h 19m
3. Matter and Energy2h 15m
4. Atoms and Elements2h 33m
5. Molecules and Compounds1h 50m
6. Chemical Composition1h 23m
7. Chemical Reactions1h 43m
8. Quantities in Chemical Reactions1h 8m
9. Electrons in Atoms and the Periodic Table2h 32m
10. Chemical Bonding2h 10m
11 Gases2h 7m
12. Liquids, Solids, and Intermolecular Forces1h 11m
13. Solutions3h 1m
14. Acids and Bases2h 14m
15. Chemical Equilibrium1h 27m
16. Oxidation and Reduction1h 33m
17. Radioactivity and Nuclear Chemistry53m

9. Electrons in Atoms and the Periodic Table

Bohr Model (Simplified)

Introduction to Chemistry

9. Electrons in Atoms and the Periodic Table

Bohr Model (Simplified)

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Multiple Choice

Which of the electron transitions represents an example of absorption with the greatest energy?

n = 1 to n = 4

n = 2 to n =3

n = 6 to n = 7

n = 5 to n = 6

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Verified step by step guidance

Understand that electron transitions involve an electron moving between energy levels in an atom. Absorption occurs when an electron moves to a higher energy level, requiring energy input.

Recall that the energy difference between levels is given by the formula: E = -13.6 eV * (1/n_final^2 - 1/n_initial^2), where n_initial and n_final are the principal quantum numbers of the initial and final energy levels, respectively.

Recognize that the greater the difference between the initial and final energy levels (n_initial and n_final), the greater the energy absorbed.

Compare the given transitions: n = 1 to n = 4, n = 2 to n = 3, n = 6 to n = 7, and n = 5 to n = 6. Calculate the energy difference for each using the formula, focusing on the magnitude of the difference in 1/n^2 terms.

Identify that the transition with the largest energy difference corresponds to the greatest energy absorption. In this case, the transition from n = 1 to n = 4 involves the largest change in energy levels, indicating the greatest energy absorption.