Soru
Movement of electrons about a central nucleus is a concept by: Chadwick Bohr Mendeleev Dalton Thomson
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4.1
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Profesyonel · 6 yıl öğretmeni
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The correct answer is **Bohr**.The concept of electrons moving around a central nucleus in specific orbits or energy levels was proposed by **Niels Bohr** in his atomic model, known as the **Bohr Model**. This model refined earlier atomic theories and introduced the idea that electrons travel in discrete energy levels (or shells) around the nucleus, which explained atomic spectra.### Explanation of Other Options:1. **Chadwick**: Discovered the neutron in 1932.2. **Mendeleev**: Created the periodic table of elements based on atomic mass.3. **Dalton**: Proposed the atomic theory, stating that atoms are indivisible particles.4. **Thomson**: Discovered the electron and proposed the "plum pudding" model of the atom.