Test 6/7 Atomic Structure & Periodicity With Answers - Mrs. Georgia Rutschilling, Mount Notre Dame High School
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146/7 • Atomic Structure & Periodicity
PRACTICE TEST
1. How many orbitals make up the 4d subshell?
a) 0
b) 1
c) 3
e) 7
d) 5
2. In what section of the periodic table is the 4f subshell being filled?
a) period 4
b) transition elements Y to Cd
c) noble gases
d) group IA
e) lanthanides
3. Which one of the following elements has 3 electrons in a p subshell?
b) Na
c) Sc
d) V
e) Nd
a) Sb
4. Which of the following distributions of electrons is correct for three electrons in p-subshell?
a)
b)
c)
d)
e)
5. Which one of the following isoelectronic species has the smallest radius?
+
b) Na
c)
Ne
2+
a) Mg
–
2–
d) F
e) O
NOTE: explain your reasoning. All have the same electron configuration, same shell, Mg has the highest Zeff
6.
Electromagnetic radiation at the blue end of the visible spectrum has a wavelength of 400 nm.
a.
Calculate the frequency of the radiation. C=λν 7.50 x 10
14
1/s
b. Calculate the energy of one photon of this radiation. E = hν 4.77 x 10
-19
J
.
c. Calculate the energy of one mole of photons of this radiation
-19
23
4.77 x 10
J/photon x 6.02 x 10
photons/mol = 287000 J/ mol
7. When a strontium salt is ignited, it burns with a red flame. The frequency of the light given off by
this flame is greater than
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