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Overby Chemistry Ch 4 Flashcards | StudBud
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Overby Chemistry Ch 4
Overby Chemistry Ch 4
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1
What is the mass of a beta particle?
2 amu
basically zero
-1 amu
4 amu
2
The "plum pudding model" is associated with:
Chadwick
Thomson
Schrodinger
Rutherford
3
What is the mass number for sulfur?
32
32.066
16
none of these
4
Who discovered the electron?
Dalton
Lavoissier
Rutherford
Thomson
5
Almost all of the mass of the atom is located:
nucleus
neutron
electron orbit
electron cloud
6
What is the charge of an alpha particle?
-1
2+
basically zero
-2
7
Which element would have a mass number of 106?
Uranium
Silver
Palladium
Seaborgium
8
Which element is on the fourth energy level in group 15?
selenium
antimony
tellurium
arsenic
9
Which Greek philosopher's ideas on chemistry were validated after 2000 years?
Plato
Aristotle
Democritus
Archimedes
10
Who is associated with the "nuclear model?"
Schrodinger
Dalton
Thomson
Rutherford
11
Most of the volume of an atom is occupied by:
the nucleus
the nucleotides
the electron cloud
the ether
12
Whose ideas ushered chemistry into the modern era around 1803?
Rutherford
Democritus
Dalton
Schrodinger
13
Who used the gold foil experiment?
Thomson
Schrodinger
Chadwick
Rutherford
14
Whose model would be just a plain sphere; also called the bowling ball or cannon ball model?
Artistotle
Democritus and Dalton
Bohr
Dalton and Thomson
15
Which model is considered the most correct and current?
quantum mechanical model
plum pudding model
plain sphere model
nuclear model
16
Who developed the polio vaccine? :-)
Salk
Dalton
Provost
Smith
17
Which was discovered first?
nucleus
proton
neutron
electron
18
Which is the correct symbol for Ruthenium?
Ru
Rt
Rh
R
19
What's the charge of a neutron?
too high to count
1+
1-
zero
20
Which is the correct symbol for iron?
Ir
I
Fe
Io
21
The planetary model of the atom is associated with:
Democritus
Bohr
Aristotle
Rutherford
22
About how many electrons would you need to equal the same mass as a proton?
1800
180
18,000
18
23
Which element has 50 protons?
Sn
Pb
lead
antimony
24
Which subatomic particle(s) would you find in the nucleus?
neutrons and electrons
protons only
neutrons and protons
protons and electrons
25
How many protons are calcium?
21
20
40
41
26
Which is the correct symbol for nickel?
Sb
Nc
Ni
N
27
Which type of radioactive decay is most dangerous?
beta particle
gamma ray
zeta particle
helium nucleus
28
What was discovered using the gold foil experiment?
electron
neutron
nucleus
probability cloud
29
Positively charged
nucleus
probability cloud
neutron
electron
30
The modern quantum mechanical model of the atom is most attributed to:
Einstein
Schrodinger
Thomson
Dalton
31
Which element has the mass number of 28?
germanium
aluminum
nickel
none of these
32
The four elements of Aristotle were:
boron, oxygen, hydrogen, and helium
earth, air, water, and fire
Earth, Mars, Venus, and the Sun
helium, geocentrism, oxygen, and Earth
33
The word "atomos" means
truth
smallest piece
cheese particle
indivisible
34
Given credit for discovering the neutron
Chadwick
Democritus
Thomson
Rutherford
35
What happened to most of the particles in the gold foil experiment?
they went straight through
they bounced back
they aligned themselves parallel to the atom
they made perpendicular angles to the atom
36
What is considered the mass of one-twelfth of a carbon atom?
only atomic mass
atomic mass unit
mass number
average atomic mass
37
Which element in group 18 does NOT have 8 valence electrons?
Kr
He
all have 8
Ne
38
How many neutrons would be in an atom of copper?
none of these
36
34
35
39
Which ratio is responsible for radioactive decay?
neutron : nuclide
proton : neutron
proton : electron
electron : neutron
40
The probability cloud model would be most associated with:
Rutherford
Bohr
Schrodinger
Democritus
41
The mass number of an atom:
is a whole number
is the sum of protons and electrons
is a weighted average
is subtracted from the atomic number
42
Which element would have a mass number of 55?
cesium
none of these
manganese
iron
43
How many neutrons are in oxygen?
16
8
1
15.999
44
Who discovered the proton?
Trinity
Rutherford
Thompson
Thomson
45
The same element that has varying numbers of neutrons would be :
neutral electrically
isotopes
average atomic mass
allotropes
46
Which is in the same group as oxygen?
polonium
fluorine
phosphorus
nitrogen
47
Used the cathode ray tube in his experiments
Rutherford
Schrodinger
Thomson
Chadwick
48
Iron has ____ electrons.
30
26
56
55
49
What element would be on the fourth period, group one?
K
H
Ti
Na
50
Which subatomic particle is heaviest when measured in grams?
nucleotides
proton
neutron
electron
