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Atomic Theory Flashcards | StudBud
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Atomic Theory
Atomic Theory
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Answers
1
What element is shown here: [Kr] 5s
2
4d
4
Tc
Mo
W
Nb
2
Which of the following atoms does NOT have 5 valence electrons?
Te
N
Bi
P
3
Which element is found in period 4, family 6?
Mo
W
Cr
Sg
4
Which of the following is the correct notation for a cation of Germanium?
Ge-4
Ga-3
Ge+4
Ga+3
5
Which element is represented here: 1s
2
2s
2
2p
6
3s
2
3p
5
S
Ar
Cl
6
In the following electron configuration, how many unpaired electrons are there: [Xe]6s
2
4f
5
7
2
5
7
All of the following are alkali metals, EXCEPT:
Potassium
Hydrogen
Lithium
Francium
8
Which is the correct ion notation for a boride ion?
Be2-
B5+
Be2+
B5-
9
Which isotope of uranium has a higher percent abundance, U-238 or U-235?
Uranium-238
Uranium-235
10
Which color of light is given off at lowest energy end of the visible spectrum?
violet
orange
indigo
green
11
Which atomic theory does the image below portray best?
Quantum Mechanical
Nuclear
Planetary
Plum Pudding
12
This is the man responsible for advancing the Quantum Theory of atomic structure:
Bohr
Rutherford
Thomson
Schrodinger
13
How many neutrons are in an atom of copper-65?
29
33
65
36
14
At what point on the Periodic Table do all elements become radioactive?
#90
#109
#84
#83
15
What is the maximum number of electrons that can be found in principal quantum number 3?
8
18
2
32
16
Which of the following elements does NOT form an ion?
Radium
Palladium
Astatine
Radon
17
This rule states that an orbital may describe 2 electrons at most & when paired, spin opposite
Pauli Exclusion Principle
Hund's Rule
Aufbau
18
How many neutrons are there in an atom of krypton (Kr)?
36
48
38
58
19
This is the only element that has no neutrons in the nucleus:
Hydrogen
Berylium
Helium
Lithium
20
This element's electron configuration will end in 6s
2
Ba
Fr
Ra
Cs
