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Atomic Theory Flashcards | StudBud
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Atomic Theory
Atomic Theory
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#chemistry #collegeboard #ap #apchem #atoms #Kdoghendren #periodictrends
Flashcards
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Questions
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Answers
1
An atom in its excited state has the configuration 1s
2
2s
2
2p
5
3s
1
3p
2
. What element is it?
Na
Si
Mg
Al
2
Which of the following elements has the largest radius?
P3-
O2-
K+
Cl-
3
Which of the following series' are isoelectronic?
Be2+, Mg2+, Ca2+
I don't know
Na+, Ne, O2-
N, O, F
4
The absorbance of Sol. A of CoCl
2
is 2x that of B. What is the relation of their conc.?
B is 1/4x as concentrated as A
B is 2x as concentrated as A
B is 1/2x as concentrated as A
B is 4x as concentrated as A
5
What wavelength would be absorbed by a yellow solution?
400-450 nm
450-480 nm
450-560 nm
560-600 nm
6
What is Doc's Dog's Name?
Kip
Bubba
Zach
Molybdenum
7
Which of these is NOT one of Doc's favorite chemistry concepts?
RICE Tables
millimoles
Factor Label
The Octet Rule
8
The two elements to the right have both have 92 electrons. They can be described as:
Polyatomic Ions
Cations/Anions
Allotropes
Isotopes
9
The frequency of an electromagnetic wave is 3.0x10
6
hz. What is its wavelength in m?
9.0 x 1014 m
1.0 x 102 m
9 x 1014 m
1 x 102 m
10
Which unknown element is Lithium?
Unknown B
C
All of the Above
Unknown A
11
What atomic property determines emission spectra?
Transmittance/Absorbance
Number of unfilled orbitals
Number of electrons in each orbital
Difference in energy between energy levels
12
Which of the following elements does NOT display color as an ion in solution?
Cu
Zn
Ni
Co
13
How many protons are in Mg
2+
?
14
10
12
16
14
Which of the following electromagnetic waves has the highest frequency?
Ultraviolet
Blue Light
Radio
Red Light
15
Which of the following elements is most electronegative?
Ar
Cl
S
P
16
_______ is a measure of how strongly atoms attract bonding electrons to themselves.
Electronegativity
Electron Affinity
Penetration
Ionization Energy
17
An unkown element gives off the following Photoelectron Spectrum. What is its identity?
Mg
Ne
Ba
c
18
Every orbital in a subshell is occupied with one electron before being doubly occupied.
Hund's Rule
Seoho's Law
Aufbau Principle
Octet Rule
19
Who is this?
John Dalton
Antoine Lavoisier
Robert Boyle
JJ Thompson
20
What element has the electron configuration [Xe]6s
2
4f
14
5d
9
?
Au
Pt
Pd
Ag
21
Which of the following reasons best explains why N has a higher ionization energy than O?
Effective Nuclear Charge
Stable Octet
Greater number of electrons in higher energy levels
Repulsions
22
Who proposed that atoms had a nucleus? Hint: he/she performed the gold foil experiment.
JJ Thompson
Neils Bohr
John Dalton
Ernest Rutherford
23
How many valence electrons does Pb have?
4
2
28
14
24
Which of the following reasons best explains why Cs has a lower electron affinity that Rb?
Effective Nuclear Charge
Repulsions
Shielding
More electrons in higher energy levels
