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Duplicate of Atomic Theory Scientists... Flashcards | StudBud
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Duplicate of Atomic Theory Scientists...
Duplicate of Atomic Theory Scientists...
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Scientists responsible for atomic theories
Flashcards
29 cards
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Questions
29
Answers
1
Thomson discovered which of the following particles?
electron
neutron
proton
nucleus
2
The REAL "Father of Modern Chemistry"
planck
aristotle
democritus
lavoisier
3
What did Rutherford discover with his gold foil experiment?
Plum Pudding Model
Electrons
Atoms contain a central, positively charged nucleus.
Atoms were mostly made of positively charged material.
4
The image show three isotopes, which one is radioactive?
A
C
B
5
Who's experiment is this?
Thomson
Dalton
Chadwick
Rutherford
6
The majority of characteristics for elements are determined by their...
Neutrons
Protons
Tron
Electrons
7
Beta-Decay is when a(n)...
proton is ejected
electron is ejected
energy waves are released
neutron is ejected
8
Which of the following statements regarding electric charge is
true
?
A pos-charge repels a neg-charge and attracts pos-charges
A pos-charge attracts a neg-charge and repels pos-charges
9
Which part of Dalton's Atomic Theory has been disproved?
reactions rearrange elements
atoms of elements combine to form compounds
all atoms of the same element are identical
all matter is made up of atoms
10
Who performed experiments with this to discover the e-?
Thomson
Schrodinger
Rutherford
Bohr
11
Which of the following is not one of the elements proposed by Aristotle?
earth
fire
sound
water
12
Who proposed the Plum Pudding Model?
Thomson
Rutherford
Chadwick
Dalton
13
The atomic number is….
the number of neutrons in the nucleus
the number of electrons
the number of protons in the nucleus
the number of neutrons plus protons
14
Pioneers for researching radioactivity......
millikan
heisenberg
currie
lavoisier
15
Who developed the 1st Modern Atomic Theory?
Democritus
Bohr
Aristotle
Dalton
16
All atoms of the same element have (choose one)
the same mass
the same number of protons
all of the above
the same number of neutrons
17
Which of the following images is the most accurate model of the interior of an atom.
A
B
C
D
18
Who first said atoms were indivisible?
Rutherford
Thomson
Dalton
Democritus
19
A spectral line...
a bright colored line
a bright colored line in a spectroscope
a bright colored line you see when you close your eyes
a bright colored line that appears on a paper
20
A spectroscope is...
An instrument that separates light into a spectrum.
An instrument used to do science
An instrument that separates light into a bottle.
An instrument that separates light for plants.
21
Walk the _____________
Plank
Catwalk
Green Mile
Boardwalk
22
Alpha-decay is when the nucleus ejects...
2 protons & 2 electrons
2 electrons & 2 protons
2 electrons
2 protons & 2 neutrons
23
Who is this...father of modern chemistry?
Democritus
Bohr
Rutherford
Dalton
24
Who discovered the neutron?
Chadwick
Millikan
Rutherford
Bohr
25
The four forces of nature are...
Strong force, Gravity, Magnetism, and Weak force
Gravity, Sound, Electromagnetism, and Strong force
Weak force, Gravity, Electromagnetism, and Strong force
Gravity, Sound, Electromagnetism, and Strong nuclear force
26
Gamma-Decay is when...
4 neutrons are released
4 neutrons & 4 protons are released
Energy is released from the nucleus
4 protons are released
27
Radioactivity means….
None of the above
the electrons in an atom have too much energy
An atom gives off radio waves.
The nucleus of an atom is unstable and will eventually chage
28
Bohr's model of the atom is called the ___________________ model..
orbiting
surrounding
planetary
atomic
29
Who identified protons?
Bohr
Chadwick
Rutherford
Thomson
