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Unit 3: Modern Atomic Theory Flashcards | StudBud
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Unit 3: Modern Atomic Theory
Unit 3: Modern Atomic Theory
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1
Which element contains the first p electron?
H
La
Sc
B
2
The Modern Atomic Theory states that electrons of an atom
surround the nucleus in a cloud of probability
orbit the nucleus in a defined path
Have a definite location and speed
Can not truly be measured
3
What is the maximum number of e- that can be found in the second principle energy level?
10
18
2
8
4
Based on the colors given off, which element has the greatest energy?
Na
Sr
Li
Cu
5
Which element contains a full 3rd energy level as its valence electronconfiguration?
Ar
Zn
Cl
He
6
The following orbital diagram represents what element?
Oxygen
Phosphorus
Copper
Nitrogen
7
Light can be thought of as a particle and a wave. A wave particle is called a
Electron
Proton
Radiation
Photon
8
Which element has the largest atomic radius of the elements listed?
K
Mn
Kr
Ga
9
The outermost electrons of an atom are called
Valence
Core
Excited
Last
10
Which electron has an electron configuration of:!!1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
6
5s
2
4d
4
?
Se
Cr
W
Mo
11
Which element has the highest ionization energy of the elements listed?
Ga
Al
In
B
12
When an electron absorbs energy, it goes from the ground state to a(n)
Valence State
Sub State
Excited state
Another state
13
Which elements have the lowest ionization energies?
Alkali Metals
Halogens
Transition Metals
Noble gases
14
An atom with 6 valence electrons is likely to
Gain two electrons
Gain 6 electrons
Lose two electrons
Lose 6 electrons
15
Which atom has 2 electrons in the 3d sublevel?
Si
Mg
Ti
Zr
16
Which principle requires electrons to fill all orbitals with the same spin first
Pauli Explusion
Aufbau
Hund's Rule
Heisenberg Uncertainty Principle
17
What is the shape of an s orbital?
Basketball
Football
Dumbbell
Pinwheel
18
As an e- gets closer to the nucleus the attraction to the nucleus gets
No change
Weaker
Stronger
19
The distance between two waves is called the
Velocity
Frequency
Wavelength
Crest
20
The alkali metals and alkaline earth metals make up the _________ block on the periodic table
p
f
s
d