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Isotope Review Flashcards | StudBud
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Isotope Review
Isotope Review
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1
Rutherford made the discovery that...
All matter is composed of atoms
Atoms are different from one element to another
Atoms make up only living things
Almost all of an atom's mass is in its nucleus
2
Who was the original philosopher who developed the concept of the atom?
Rutherford
Bohr
Thomson
Democritus
3
Elements are identified by their
atomic weight
atomic number
atomic mass
4
What is the mass number of a Lithium atom with 7 neutrons?
7
13
10
3
5
What did JJ Thompson discover in the atom?
Electron
Proton
Shell
Neutron
6
The nucleus of an atom consists of
All of the above
Protons and neutrons
Electron and neutrons
Electrons and protons
7
The mass number of this atom is
9
6
7
8
8
Which scientist used the Cathode Ray Tube Experiment
Thomspon
Rutherford
Democritus
Milliken
9
Dalton's Atomic Theory included:
Atoms are indivisible
All of these
Atoms cannot be destroyed
Everything is made of atoms
10
How many Protons does sulfur have?
20
16
32
5
11
What experiment did Rutherford use?
Silver foil experiment
Gold foil experiment
Copper experiment
Gold experiment
12
How many neutrons does the most common isotope of Neon have?
12
20
10
11
13
Contains most of the mass of an atom.
atomic number
nucleus
protons
neutrons
14
John Dalton created the first atomic theory
False
True
15
Millikans oil drop experiment discovered....
electrons have negative charge
the mass of photons
the density of oil
how much charge an electron has
16
Who developed the oil drop experiment?
Ernest Rutherford
Sir William Crookes
J.J. Thomson
Robert Millikan
17
An isotope contains:
Different number of protons than the original element
More atomic orbitals than the original element
Different number of electrons than the original element
Different number of neutrons than the original element
18
Why is the mass of Carbon a decimal?
It is the average mass of all its isotopes
It is not a decimal
Because it is a nonmetal
It is the area of the nucleus
19
The atomic number tells us...
# of electrons
# of protons
your age
# of electron shells
20
How many electrons are in a neutral atom of nitrogen?
7
0
14
12
21
Whose model was the Billiard Ball
Thomson
Bohr
Rutherford
Dalton
