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Atomic History & Structure Review Flashcards | StudBud
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Atomic History & Structure Review
Atomic History & Structure Review
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1
The Bohr model below depicts which element?
Scandium
Titanium
Calcium
Potassium
2
The _____________ is the number of protons and neutrons in an atom.
Atomic charge
Atomic Symbol
Atomic Mass
Atomic Number
3
Determined that electron paths cannot be predicted and exist inside the Electron Cloud.
Schrodinger
Ernest Rutherford
Heisenberg
John Dalton
4
Who believed that electrons were scattered amongst positively charged material.
Ernest Rutherford
John Dalton
Niels Bohr
JJ Thomson
5
Discovered that the atom has a small, dense, positively charged nucleus.
Heisenberg
Greek Philosophers
JJ Thomson
Ernest Rutherford
6
The following element has _______________ neutrons.
46
31
15
16
7
The following picture represents which atomic model?
JJ Thomson
Ernest Rutherford
Schrodinger & Heisenberg
John Dalton
8
How many protons does an atom with an atomic number of 28 and a mass number of 40 have?
28
12
40
68
9
Which statement about electrons is true?
Electrons circle the nucleus of the atom
Electrons have a mass of 1 amu
Electrons exist in the nucleus of the atom
Electrons have a positive charge
10
Neutrons are found in the...
Electron Cloud
Electrons
Protons
Nucleus
11
Believed that atoms are small, hard particles that were "indivisible"
Greek Philosophers
Aristotle
Schrodinger
Democritus
12
The following picture represents which atomic model?
John Dalton
Niels Bohr
Ernest Rutherford
Schrodinger & Heisenberg
13
The _____________ determines the identity of an object.
# of Neutrons
# of Electrons
Atomic Number
# of Protons
14
Believed that electrons traveled around the nucleus in definite paths.
Modern Atomic Theory
Ernest Rutherford
John Dalton
Niels Bohr
15
The following picture represents which atomic model?
Niels Bohr
JJ Thomson
Schrodinger & Heisenberg
Democritus
16
Did experiments to show that atoms form compound in set ratios.
John Dalton
JJ Thomson
Schrodinger
Niels Bohr
17
Believed that all atoms of the same element would be the same.
Niels Bohr
Modern Atomic Theory
John Dalton
JJ Thomson
18
The following picture represents which atomic model?
Democritus
John Dalton
Aristotle
Ernest Rutherford
19
Electrons have a ___________ charge.
Negative
Neutral
Positive
20
The following element has _____________ electrons.
114
289
403
175
