When a photoelectric effect experiment was carried out using a metal 'M' and light at wavelength λ 1 , electrons were emitted with a kinetic energy of 1 .6 × 1 0 − 19 J . The wavelength was reduced to 1/2 of its original value and the experiment was repeated (still using the same metal target). This time electrons were emitted with a kinetic energy of 6 .4 × 1 0 − 19 J .The electron binding energy for the metal M needs to be calculated. Concept introduction: The photelectric effect alludes to the ejection, or emission of the electrons from the surface ofusually a metal in reply to the incident light. In the incident light the contained energy is absorbed through electrons in the metal, providing the electrons required energy to be “bumped” out of or released from the metal’s surface. As per the Maxwell wave theory of light,the more concentrated the incident light, the higher the energy through which the electrons should be emitted from the metal. The emitted electron’s average kinetic energy should increment with the incident light’s intensity.
When a photoelectric effect experiment was carried out using a metal 'M' and light at wavelength λ 1 , electrons were emitted with a kinetic energy of 1 .6 × 1 0 − 19 J . The wavelength was reduced to 1/2 of its original value and the experiment was repeated (still using the same metal target). This time electrons were emitted with a kinetic energy of 6 .4 × 1 0 − 19 J .The electron binding energy for the metal M needs to be calculated. Concept introduction: The photelectric effect alludes to the ejection, or emission of the electrons from the surface ofusually a metal in reply to the incident light. In the incident light the contained energy is absorbed through electrons in the metal, providing the electrons required energy to be “bumped” out of or released from the metal’s surface. As per the Maxwell wave theory of light,the more concentrated the incident light, the higher the energy through which the electrons should be emitted from the metal. The emitted electron’s average kinetic energy should increment with the incident light’s intensity.
Solution Summary: The author explains the photelectric effect, which ejects electrons from the surface of a metal in response to the incident light.
Definition Definition Phenomenon in which a substance absorbs electromagnetic radiation and electrically charged particles are emitted from or inside it.
Chapter 6, Problem 6.94PAE
Interpretation Introduction
Interpretation: When a photoelectric effect experiment was carried out using a metal 'M' and light at wavelength λ1, electrons were emitted with a kinetic energy of 1.6×10−19 J. The wavelength was reduced to 1/2 of its original value and the experiment was repeated (still using the same metal target). This time electrons were emitted with a kinetic energy of 6.4×10−19 J.The electron binding energy for the metal M needs to be calculated.
Concept introduction:
The photelectric effect alludes to the ejection, or emission of the electrons from the surface ofusually a metal in reply to the incident light.
In the incident light the contained energy is absorbed through electrons in the metal, providing the electrons required energy to be “bumped” out of or released from the metal’s surface.
As per the Maxwell wave theory of light,the more concentrated the incident light, the higher the energy through which the electrons should be emitted from the metal. The emitted electron’s average kinetic energy should increment with the incident light’s intensity.
(f) SO:
Best Lewis Structure
3
e group geometry:_
shape/molecular geometry:,
(g) CF2CF2
Best Lewis Structure
polarity:
e group arrangement:_
shape/molecular geometry:
(h) (NH4)2SO4
Best Lewis Structure
polarity:
e group arrangement:
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
Sketch (with angles):
1.
Problem Set 3b
Chem 141
For each of the following compounds draw the BEST Lewis Structure then sketch the molecule (showing
bond angles). Identify (i) electron group geometry (ii) shape around EACH central atom (iii) whether the
molecule is polar or non-polar (iv)
(a) SeF4
Best Lewis Structure
e group arrangement:_
shape/molecular geometry:
polarity:
(b) AsOBr3
Best Lewis Structure
e group arrangement:_
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
(c) SOCI
Best Lewis Structure
2
e group arrangement:
shape/molecular geometry:_
(d) PCls
Best Lewis Structure
polarity:
e group geometry:_
shape/molecular geometry:_
(e) Ba(BrO2):
Best Lewis Structure
polarity:
e group arrangement:
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
Sketch (with angles):
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