A minimum energy of 7.21 × 10 − 19 J is required to produce the photoelectric effect in chromium metal. (a) What is the minimum frequency of light needed to remove an electron from chromium? (b) Light with a wavelength of 2 .50×10 − 7 m falls on apiece of chromium in an evacuated glass tube. What is the minimum de Brogue wavelength of the emitted electrons? (Note that the energy of the incident light must beconserved; that is, the photon’s energy must equal the sum of the energy needed to eject the electron plus the kinetic energy of the electron.)
A minimum energy of 7.21 × 10 − 19 J is required to produce the photoelectric effect in chromium metal. (a) What is the minimum frequency of light needed to remove an electron from chromium? (b) Light with a wavelength of 2 .50×10 − 7 m falls on apiece of chromium in an evacuated glass tube. What is the minimum de Brogue wavelength of the emitted electrons? (Note that the energy of the incident light must beconserved; that is, the photon’s energy must equal the sum of the energy needed to eject the electron plus the kinetic energy of the electron.)
Solution Summary: The author explains how the minimum frequency of light needed to remove an electron from chromium is determined if 7.21 x 10-19 J energy is required to produce the photoelectric effect.
A minimum energy of
7.21
×
10
−
19
J
is required to produce the photoelectric effect in chromium metal. (a) What is the minimum frequency of light needed to remove an electron from chromium? (b) Light with a wavelength of
2
.50×10
−
7
m
falls on apiece of chromium in an evacuated glass tube. What is the minimum de Brogue wavelength of the emitted electrons? (Note that the energy of the incident light must beconserved; that is, the photon’s energy must equal the sum of the energy needed to eject the electron plus the kinetic energy of the electron.)
Definition Definition Phenomenon in which a substance absorbs electromagnetic radiation and electrically charged particles are emitted from or inside it.
. M
1- MATCH each of the following terms to a structure from the list below. There is only one correct
structure for each term and structures may be used more than once. Place the letter of the structure
in the blank to the left of the corresponding term.
A. Sanger dideoxy method
C. Watson-Crick
B. GAUCGUAAA
D. translation
E. HOH2C
OH
OH
G. transcription
I. AUGGCUGAG
0
K. OPOH2C
0-
OH
N-
H
NH2
F. -OPOH2C
0-
OH
OH
H. Maxam-Gilbert method
J. replication
N
L.
HOH2C
a.
b.
C.
d.
e.
f.
g.
B
M. AGATCGCTC
a pyrimidine nucleoside
RNA base sequence with guanine at the 3' end.
DNA base sequence with cytosine at the 3' end.
a purine nucleoside
DNA sequencing method for the human genome
2'-deoxyadenosine 5'-phosphate
process by which mRNA directs protein synthesis
OH
NH2
Please use hand drawn structures when needed
B. Classify the following amino acid. Atoms other than carbon and hydrogen are labeled.
a. acidic
b. basic
C.
neutral
C.
Consider the following image.
Which level of protein structure is shown here?
a.
primary
b. secondary
c. tertiary
d. quaternary
D.
Consider the following image.
H
RH
H
HR
H R
HR
HR
RH
Which level of protein structure is shown in the box?
a. primary
b. secondary
R
c.
tertiary
d.
quaternary
コー
R
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell