BOHR´S ATOMIC MODEL

BOHR´S ATOMIC MODEL

1. Niels Henrik David Bohr was a Danish physicist who contributed to the understanding of the atom and quantum mechanics. Juan Luis

2. Bohr´s Atomic Theory Postulates

   • 1. spectral lines are produced by atomsone at a time 2. a single electron is responsable for each line 3. the rutherford nuclear atom is the correct model 4. the quantum laws apply to jumps between different states characterized by discrete values. Juan Luis

3. Bohr's model "spectra" of hydrogen? the electron moved in circular orbits and that orbits with certain radii were allowed, the closest orbit to the nucleus represented the ground state of the atom and was more stable, the farthest orbits were excited states of higher energy. Juan Luis

4. What does "quantized" mean? quantized means that it can only take certain specific values, rather than a continuous range of values. Juan Luis

5. What does the "spectrum" include? Includes electromagnetic waves. Fer Escalona

6. How is the "periodic table" constructed? for its electronic configuration and chemical properties. Fer Escalona

7. Explain with an example (without helium), what the numbers, we find in the periodic table, mean. A number that you will find on all periodic tables is the atomic number of each element. Fer Escalona

8. In the periodic table, why are there some elements in the same column? Because they have the same atomic mass. Fer Escalona

9. The Bohr model and all of its successors describe the properties of atomic electrons in terms of a set of allowed values. Atoms absorb or emit radiation only when the electrons abruptly jump between allowed, or stationary, states. Sofi

10. He assumed that otherwise electrons obey the laws of classical mechanics by traveling around the nucleus in circular orbits. Sofi

11. A spectroscope separates sunlight into a colorful spectrum. Some elements in the Sun’s photosphere absorb light and make dark lines (below) in the spectrum. Sofi

12. Bohr's theoretical work contributed significantly to scientists' understanding of nuclear fission. According to his liquid droplet theory, a liquid drop provides an accurate representation of an atom's nucleus. Sofi