The value of telling it like it was. The best honours project ever?
Christopher Barnett

A
Abstract
We use the example of textbook treatments of the ‘Rutherford nucleus’ to illustrate the need to avoid conflating important concepts, the ‘brick in the wall’ path to scientific understanding, the value in testing one’s understanding, the utility of ‘incorrect’ models, and the importance of not ignoring seemingly inexplicable infrequent results.
Keywords: atom, chemistry education, isotopes, models, neutron, nucleus, protons, textbook, undergraduate curriculum.
References
1 Gegier H, Marsden E. On a diffuse reflection of the ⍺-particles. Proc R Soc Lond – A. 1909; 82(557): 495-500.
| Crossref | Google Scholar |
2 Rutherford E. Scattering of alpha and beta particles by matter and the structure of the atom. Lond Edinb Dubl Philos Mag J Sci 1911; 21: 669-689.
| Crossref | Google Scholar |
3 Rutherford E. The scattering of the ⍺ and β rays and the structure of the atom. Mem Proc Manch Literary & Philos Soc 1911; 55: xviii.
| Google Scholar |
5 Eve AS, Chadwick J. Lord Rutherford, 1871–1937. Obituary Not Fellows R Soc 1938; 2(6): 394-423.
| Crossref | Google Scholar |
6 Bragg WH. LXXIII. On the absorption of ⍺ rays, and on the classification of the α rays from radium. Lond Edinb Dubl Philos Mag J Sci 1904; 8(48): 719-725.
| Crossref | Google Scholar |
7 Heilbron JL. The scattering of ⍺ and β particles and Rutherford’s Atom. Arch Hist Exact Sci 1968; 4(4): 247-307.
| Crossref | Google Scholar |
8 Rutherford E. XIX. Retardation of the ⍺ particle from radium in passing through matter. Lond Edinb Dubl Philos Mag J Sci 1906; 12(68): 134-146.
| Crossref | Google Scholar |
9 Geiger H, Rutherford E. On the scattering of the ⍺-particles by matter. Proc R Soc Lond – A. Contain Pap Math Phys Character 1908; 81(546): 174-177.
| Crossref | Google Scholar |
11 Tretkoff E. Rutherford and the Discovery of the Atomic Nucleus. In APS News | This Month in Physics History, 1 May 2006. American Physical Society. Available at https://www.aps.org/apsnews/2006/05/rutherford-discovery-atomic-nucleus
14 Marsden E. The Rutherford Memorial Lecture, 1954 Rutherford – his life and work, 1871–1937. Proc R Soc Lond – A. Math Phys Sci 1954; 226(1166): 283-305.
| Google Scholar |
17 Geiger H, Marsden E. Die Zerstreuungsgesetze der a-Strahlen bei grossen Ablenkungswinkeln. Sitz-Ber K Akad Wiss, Math-Naturwiss Kl 1912; 121: 2361-2390 [In German].
| Google Scholar |
18 Trenn TJ. The Geiger–Marsden scattering results and Rutherford’s atom, July 1912 to July 1913: the shifting significance of scientific evidence. Isis 1974; 65(1): 74-82.
| Crossref | Google Scholar |
19 Geiger H, Marsden E. LXI. The laws of deflexion of ⍺ particles through large angles. Lond Edinb Dubl Philos Mag J Sci 1913; 25(148): 604-623.
| Crossref | Google Scholar |
20 Fleming CA. Ernest Marsden, 1889–1970. Biogr Mem Fellows R Soc 1971; 17: 462-496.
| Crossref | Google Scholar |
21 Weiner C. James Chadwick - Session I. April 15, 1969. In: Oral History Interviews. College Park, MD, USA: Niels Bohr Library & Archives, American Institute of Physics; 1969. 10.1063/nbla.ynat.bgjv
22 Marsden E. XCI. The passage of ⍺ particles through hydrogen. Lond Edinb Dubl Philos Mag J Sci 1914; 27(161): 824-830.
| Crossref | Google Scholar |
24 Rutherford E, Nuttall JM. LVII. Scattering of ⍺ particles by gases. Lond Edinb Dubl Philos Mag J Sci 1913; 26(154): 702-712.
| Crossref | Google Scholar |
26 Rutherford E. Discussion on the structure of the atom. Proc R Soc Lond – A. Contain Pap Math Phys Character 1914; 90(615): 1-19.
| Crossref | Google Scholar |
27 Rutherford E. LVII. The structure of the atom. Lond Edinb Dubl Philos Mag J Sci 1914; 27(159): 488-498.
| Crossref | Google Scholar |
28 British Association for the Advancement of Science. Report of the 84th Meeting of the British Association for the Advancement of Science. London, UK: British Association for the Advancement of Science; 1915. Available at https://www.biodiversitylibrary.org/item/95821
29 Kuhn TS, Rosenfeld L, Petersen A, Rudinger E. Interview of Niels Bohr - Session II. November 1, 1962. In: Oral History Interviews. College Park, MD, USA: Niels Bohr Library & Archives, American Institute of Physics; 1962. 10.1063/nbla.pnvg.jatj
31 Bohr N. I. On the constitution of atoms and molecules. Lond Edinb Dubl Philos Mag J Sci 1913; 26(151): 1-25.
| Crossref | Google Scholar |
32 Bohr N. XXXVII. On the constitution of atoms and molecules. Part II. Lond Edinb Dubl Philos Mag J Sci. 1913; 26(153): 476-502.
| Crossref | Google Scholar |
33 Bohr N. LXXIII. On the constitution of atoms and molecules. Lond Edinb Dubl Philos Mag J Sci 1913; 26(155): 857-875.
| Crossref | Google Scholar |
35 Moseley HGJ. XCIII. The high-frequency spectra of the elements. Lond Edinb Dubl Philos Mag J Sci 1913; 26(156): 1024-1034.
| Crossref | Google Scholar |
36 Moseley HGJ. LXXX. The high-frequency spectra of the elements. Part II. Lond Edinb Dubl Philos Mag J Sci 1914; 27(160): 703-713.
| Crossref | Google Scholar |
37 Chadwick J. Possible existence of a neutron. Nature 1932; 129(3252): 312.
| Crossref | Google Scholar |
38 Chadwick J. The existence of a neutron. Proc R Soc Lond – A. Contain Pap Math Phys Character 1932; 136(830): 692-708.
| Crossref | Google Scholar |
39 Thomson GP. Charles Galton Darwin, 1887–1962. Biogr Mem Fellows R Soc 1963; 9: 69-85.
| Crossref | Google Scholar |
40 Rutherford E. LIV. Collision of ⍺ particles with light atoms. IV. An anomalous effect in nitrogen. Lond Edinb Dubl Philos Mag J Sci 1919; 37(222): 581-587.
| Crossref | Google Scholar |
41 Rutherford E. LI. Collision of ⍺ particles with light atoms I. Hydrogen. Lond Edinb Dubl Philos Mag J Sci 1919; 37(222): 537-561.
| Crossref | Google Scholar |
42 Rutherford E. LII. Collision of ⍺ particles with light atoms II. Velocity of the hydrogen atom. Lond Edinb Dubl Philos Mag J Sci 1919; 37(222): 562-571.
| Crossref | Google Scholar |
43 Rutherford E. LIII. Collision of ⍺ particles with light atoms III. Nitrogen and oxygen atoms. Lond Edinb Dubl Philos Mag J Sci 1919; 37(222): 571-580.
| Crossref | Google Scholar |
44 Blackett PMS. The ejection of protons from nitrogen nuclei, Photographed by the Wilson Method. Proc R Soc Lond – A. Contain Pap Math Phys Character 1925; 107(742): 349-360.
| Crossref | Google Scholar |
45 Rutherford E. Bakerian Lecture: nuclear constitution of atoms. Proc R Soc Lond – A. Contain Pap Math Phys Character 1920; 97(686): 374-400.
| Crossref | Google Scholar |
46 Rankine AO. Report on the Proceedings of Section A, British Association, Cardiff, August 1920. Sci Prog Twent Century (1919-1933) 1921; 15(59): 461-464.
| Google Scholar |
47 Anon.. Physics at the British Association. Nature 1920; 106(2663): 357-358.
| Crossref | Google Scholar |
48 Eddington AS. The internal constitution of the stars. Prediential address to Section A of the British Association. Observatory 1920; 43: 341-358.
| Google Scholar |
49 Romer A. Proton or prouton? Rutherford and the depths of the atom. Am J Phys 1997; 65(8): 707-716.
| Crossref | Google Scholar |
50 The British Association.. Proceedings of section A. Eng 1920; 110: 382-383.
| Google Scholar |
53 Glasstone S. William Prout (1785–1850). J Chem Educ 1947; 24(10): 478.
| Crossref | Google Scholar |
54 Millikan RA. Faraday lecture. Atomism in modern physics. J Chem Soc Trans 1924; 125(0): 1405-1417.
| Crossref | Google Scholar |
55 Masson DO. XXIV. The constitution of atoms. Lond Edinb Dubl Philos Mag J Sci 1921; 41(242): 281-285.
| Crossref | Google Scholar |
57 Jessup AC, Jessup AE. II. The evolution and devolution of the elements. Lond Edinb Dubl Philos Mag J Sci 1908; 15(85): 21-55.
| Crossref | Google Scholar |
58 Kragh H. A terminological history of early elementary particle physics. Arch Hist Exact Sci 2023; 77(1): 73-120.
| Crossref | Google Scholar |
59 Soddy F. Intra-atomic charge. Nature 1913; 92(2301): 399-400.
| Crossref | Google Scholar |
60 Fleck A. Frederick Soddy, 1877–1956. Biogr Mem Fellows R Soc 1957; 3: 203-216.
| Crossref | Google Scholar |
61 Soddy F. Frederick Soddy Nobel Lecture – The Origins of the Conception of Isotopes. Nobel Prize Outreach. Available at https://www.nobelprize.org/prizes/chemistry/1921/soddy/lecture/
62 Longair M. Rutherford and the Cavendish Laboratory. J R Soc N Z 2021; 51(3–4): 444-466.
| Crossref | Google Scholar |
63 Rack E. Mr Rack’s description of a new-found aquatic animal. Gent Mag Hist Chron 1779; 49: 432-433.
| Google Scholar |
64 Aston FW. Isotopes and atomic weights. Not Proc Meet Memb R Inst 1921; 23: 299.
| Google Scholar |
65 Aston FW. Isotopes and atomic weights. Nature 1921; 107: 334-338.
| Crossref | Google Scholar |
66 Rutherford E, Aston FW, Chadwick J, Ellis CD, Gamow G, Fowler RH, Richardson OW, Hartree DR. Discussion on the structure of atomic nuclei. Proc R Soc Lond – A. Contain Pap Math Phys Character 1929; 123(792): 373-390.
| Crossref | Google Scholar |
67 Aston FW. Francis W. Aston Nobel Prize lecture – Mass Spectra and Isotopes. Nobel Prize Outreach. Available at https://www.nobelprize.org/prizes/chemistry/1922/aston/lecture/
68 Bainbridge KT. The isotopic weight of H2. Phys Rev 1932; 42(1): 1-10.
| Crossref | Google Scholar |
69 Schultz G. Feier der Deutschen Chemischen Gesellschaft zu Ehren August Kekulé’s. Ber Dtsch Chem Ges 1890; 23(1): 1265-1312 [In German].
| Crossref | Google Scholar |
70 Curie I, Joliot MF. Émission de protons de grande vitesse par les substances hydrogénées sous l’influence des rayons y très pénétrants. C R Hebd Séanc Acad Sci Paris 1932; 194: 273-275 [In French].
| Google Scholar |
71 Sutherland W. XX. Cathode, Lenard, and Röntgen rays. Lond Edinb Dubl Philos Mag J Sci 1899; 47(286): 269-284.
| Crossref | Google Scholar |
73 Glasson JL. LXIX. Attempts to detect the presence of neutrons in a discharge tube. Lond Edinb Dubl Philos Mag J Sci Ser Six 1921; 42: 596-600.
| Crossref | Google Scholar |
75 Feather N. Chadwick’s neutron. Contemp Phys 1974; 15(6): 565-572.
| Crossref | Google Scholar |
76 Chadwick J. James Chadwick Nobel Prize lecture – The Neutron and its Properties. Nobel Prize Outreach. Available at https://www.nobelprize.org/prizes/physics/1935/chadwick/lecture/
77 Chadwick J, Goldhaber M. The nuclear photoelectric effect. Proc R Soc Lond – A. Math Phys Sci 1935; 151(873): 479-493.
| Google Scholar |
78 Anon.. The funeral of Lord Rutherford. Nature 1937; 140(3548): 754-755.
| Crossref | Google Scholar |