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Development of the modern atom
Development of the modern atom
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Development of the atom
Flashcards
34 cards
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Practice quiz
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Questions
34
Answers
1
Bohr's model only works for one element on the periodic table...which one?
Carbon
Oxygen
Helium
Hydrogen
2
How many moles are in 2 kmol?
1
20
2000
.0002
3
How many electrons will fit in a
d
sublevel?
6
10
14
2
4
Of the62 survivors from the Hindenberg disaster of 1937that had 36 fatalities,how many were buried?
none
close to half
62
36
5
When electrons are removed by light at specific energies from metal...
Heisenberg Effect
DeBroglie Removal Theory
Photoelectric Effect
Tyndall Effect
6
This quantum number shows us the shape of the orbital...
Magnetic
Principal
Spin
Angular Momentum
7
This quantum number shows us the energy level of an electron...
Magnetic
Angular Momentum
Principal
Spin
8
Mercury is an example of which of the following:
All of the above
Mixture
Compound
Element
9
Bohr's model was an attempt to explain what about hydrogen?
radio frequency
line emission spectrum
periodicity
ionization
10
How many grams are in half a mole of CO
2
?
88
44
22
11
11
This daddy said there is no way, Jose, we will ever know an electron's exact location..
Planck
DeBroglie
Heisenberg
Schrodinger
12
This electron configuration goes with what element? 1s
2
2s
2
2p
4
Lithium
Nitrogen
Oxygen
Neon
13
Leaves changing color in the fall is an example of ...
extensive change
chemical change
intensive change
physical change
14
What was discovered using cathode ray tubes, a paddle wheel, and a magnet?
electron
neutron
proton
none of the above
15
The main difference between a photon and quanta is the photon is energy and the quanta is a particle with zero mass.
True
False
16
Which of the following is a perfect example of a physical change?
deposition
all of the above
freezing popsicles
melting butter
17
Who asked the question, Why can't electrons behave like waves?
DeBroglie
Planck
Bohr
Einstein
18
Which of the following would explain one of the two incorrect assumptions on the atomic theory?
chemical reactions
isotopes
none of the above
ionic bonds
19
Who proposed the atom looked like plum pudding with electrons as raisins dispersed in pudding?
DeBroglie
Rutherford
Schrodinger
Thomson
20
How long did it take to propose the nuclear atom?
2 days
2 years
2 weeks
2 months
21
Which of the following might indicate a chemical reaction is taking place?
Deposition on the roof on a cold morning
Condensation on the outside of your drinking glass
Bubbles being produced
Random mixing of gases
22
The smallest particle that still retains the properties of a substance is called...
atom
molecule
ion
none of the above
23
This is the reason we show arrows going in the opposite direction for orbital notations..
Magnetic Quantum #
Angular Momentum Quantum #
Spin Quantum #
Principal Quantum #
24
Which element does the following notation describe? [Ar]4s
2
Beryllium-10
Potassium-39
Neon-20
Calcium-40
25
Chlorine-37 would have how many neutrons?
17
not enough info.
37
20
26
Which is an explanation on why most of the alpha particles passed through the gold foil...
Gold takes on a less dense orientation
none of the above
They held an opposite charge
Atom is mostly empty space
27
This daddy proposed the atomic theory which was not completely correct but has been modified..
Rutherford
Dalton
Heisenberg
Thomson
28
How many electrons will fit in an
s
sublevel?
2
6
14
10
29
Fill in the missing blank for the following pattern: 2, 8, 8 , ___ , 18, 32,32
8
16
18
12
30
This daddy shot alpha particles at thin gold foil in a dark room discovering the nuclear atom
Lewis
DeBroglie
Einstein
Rutherford
31
Which of the following sublevels cannot exist according to the quantum mechanical model?
5p
3f
4p
7p
32
Who was the first to put electrons in very specific places he called orbits?
Schrodinger
Bohr
Rutherford
Thomson
33
How many ways can an
f
sublevel be drawn?
5
7
14
10
34
This daddy gave us an equation that gave us a 90% probability of finding an electron in space..
Garfield
Planck
Bohr
Shrodinger