3330742
Beschreibung
Frage 1
Frage
Negatively charged subatomic particles.
Antworten
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Proton
-
Neutron
-
Electron
-
Nucleus
Frage 2
Frage
Subatomic particle with no charge.
Antworten
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Proton
-
Neutron
-
Electron
-
Nucleus
Frage 3
Frage
Positively charged subatomic particle.
Antworten
-
Proton
-
Neutron
-
Electron
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Nucleus
Frage 4
Frage
Central dense core of an atom responsible for its mass.
Antworten
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Proton
-
Neutron
-
Electron
-
Nucleus
Frage 5
Frage
Philosopher who was among the first to suggest the existence of atoms.
Antworten
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Bohr
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Rutherford
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Dalton
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Democritus
Frage 6
Frage
The mass of an electron is equal to the mass of a neutron.
Antworten
- True
- False
Frage 7
Frage
Rutherford’s gold foil experiment proved that atoms are mostly empty space with a dense, positively charged nucleus.
Antworten
- True
- False
Frage 8
Frage
The mass number of an atom is equal to
Antworten
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Weighted average of masses of all isotopes of an element
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Protons plus Neutrons
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Number of Neutrons
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Number of Protons
Frage 9
Frage
The atomic mass of an atom is equal to
Antworten
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Weighted average of masses of all isotopes of an element
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Protons plus Neutrons
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Number of Neutrons
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Number of Protons
Frage 10
Frage
An isotope of neon has a mass number of 22. How many neutrons in this isotope?
Antworten
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22
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20
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12
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10
Frage 11
Frage
An isotope of lead has a mass number of 206. How many protons in this isotope?
Antworten
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82
-
124
Frage 12
Frage
Calculate the atomic mass of an atom with the following isotope data:
Mass : Abundance
36.00 : 75.77%
37.00 ; 24.23%
Antworten
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36.14
-
36.68
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36.48
-
36.24
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