Order the atomic models as they were proposed
Exercise and reference answers
- Steps
- Dalton: the atom is the ultimate indivisible particle
- Thomson: a sphere of positive charge with electrons embedded
- Rutherford: a tiny dense nucleus with electrons revolving around it
- Bohr: electrons in fixed circular orbits of definite energy
- Schrodinger: a wave equation giving energy states and orbitals
Explanation
syllabus walks through them in this order, each answering what the previous one could not: Dalton 1808, Thomson 1898, Rutherford 1909, Bohr 1913, Schrodinger 1926. Source: syllabus Chemistry Part I, Ch 2 Structure of Atom.
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