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Name____________________________
Honors Chemistry I
Electron Configuration /
EM Radiation Practice Test
1.________ Salts of which of these metals produce a lavendar or violet flame, in a flame test?
A) Na;
B) K;
C) Cu;
D) Sr;
E) Li;
F) Co;
G) Mn
2.________ In a chemical reaction the removal or movement of what type of electron is associated with the
visible range color of the salts of transition metals?
A) s orbtial; B) p orbital;
C) d orbital;
D) f orbital.
3._______________________ What is the set of quantum numbers for the 17th electron in a neutral atom of
n
l
m
s
radon in its ground state?
4._______
Which of the following subshells contains electrons of the highest energy?
A) 7s;
B) 4f;
C) 5d;
D) 1s;
E) 6p
5._______
What is the symbol for the element that has the following set of quantum numbers for its
highest energy electron in the ground state: n = 4 l = 2
m = +2 s = -1/2
6._______________________ What is the wavelength for a photon (in nm) if it has a frequency
of 8.70 x 1014 sec-1?
7._______________________ What type of EM radiation is described in the problem above?
8._______________________ What is the energy (in joules) associated with this photon?
9._______________________ How many kilojoules of energy would be associated with 0.040 moles of the
photons described in #8?
10._____________________ Calculate the energy associated with the sixth shell.
-2Consider this complete electron configuration for the following neutral element:
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d8
11._________ What is the highest energy subshell in this element?
12._________ What is the chemical symbol for the element being described?
13.________ What is the total number of subshells within this element?
14.________ What is the classification of this element?
A) alkali metal; B) transition metal; C) alkaline earth metal;
E) halogen;
F) inner transition metal; G) noble gas
D) chalcogen;
15. T - F
Based on the electron arrangement, this element would be paramagnetic.
16. T - F
Based on the Z number , this element would be radioactive.
17._______________________ What is the set of quantum numbers for the highest energy electron in a
n
l
m s
neutral atom of this element?
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18.______
What element is it whose neutral, isolated atom has two valence electrons in the 5s subshell,
and two half-filled orbitals in the 5p subshell (in addition to its core electrons)?
19.______
How many shells are either filled or partially filled in a neutral atom of nobelium?
20.________ Which of the following is/are a valid set of quantum numbers for any one of the electrons in a
ground state configuration of a neutral atom of cerium?
n
l
m
s
n
l
m
s
A)
3
2
-1
-1/2
B) 5
0
0
+1/2
C)
5
3
-2
-1/2
D) 3
3
-1
+1/2
E)
1
1
+1
-1/2
F) 5
1
-2
+1/2
G) both A and B; H) both C and D; I) both A and C; J) both B and C.
21._________________________________ Give the electron configuration, using the inert gas core, for a
neutral atom of indium in its ground state.
22._________________________________ Give the electron configuration, using the inert gas core, for the
+2 cationic form of zinc in its ground state.
23.__________ How many electrons are required to fill the “N” shell?
-3-
24.__________ How many electrons are needed to fill any one of the orbitals in the “6p” subshell?
25.______
Which of the following is the highest energy subshell in the yttrium ion (Y+3)?
A) 4d;
B) 5s;
C) 5d;
E) 6s;
F) 4p;
G) 5f
26.____________ If the highest-energy electron in a neutral atom has the following set of quantum
numbers: n = 5 l = 2
m = -1
s = +1/2, what element is being described?
27.________________ What is the wavelength (in Angstroms) of a photon if it possesses 6.28 x 10-16
joules of energy?
28._____
Which of the following forms of electromagnetic radiation possesses the least amount of
energy per photon?
A) X rays; B) cosmic rays; C) radio waves; D) microwaves; E) visible light
29._______
An atom of hassium (Z# = 108) has a total of how many "p" electrons?
30._______
What is the number of orbitals in a subshell if the azimuthal quantum number (l) = 3?
31._______
Which of the following species is isoelectronic with a neutral argon atom?
A) Si+4; B) Se-2;
C) P-3;
D) Ca+2;
E) La+3;
F) both C & D; G) A, C, and D.
32.____________________ Give the core electron configuration for a neutral copper atom.
33. Explain the reason for this abnormality.