AnswersSVHS Chemistry 1 FAThe Historical Development of Atomic Theory

The Historical Development of Atomic Theory Answers

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The photoelectric effect is the

A
diffraction
B
emission
C
spinning
3

Describe how the Bohr model explains both of these observations.

Answer:

In the Bohr model, electrons can exist only in specific energy levels. When an atom absorbs energy, an electron jumps to a higher energy level. When it falls back to a lower level, it emits light. The wavelength of this light corresponds to the specific energy difference between the levels. Because every element has a unique set of energy levels, each element produces a unique emission spectrum.

4

Which statements are true of the electron cloud model? Check all that apply.

A
It is also known as the planetary model.
B
It is considered the modern atomic model.
C
It describes the probable locations of the electrons.
D
It describes the specific locations of the electrons.
5

Did your answer include all of the following?

A
In the Bohr model, electrons can exist only in certain energy levels surrounding the atom.
B
When electrons jump from a higher energy level to a lower one, they emit light at a wavelength that corresponds to the energy difference between the levels.
C
The energy levels in each atom are unique.

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