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Objectives
Indicated the number of fundamental particles in any given isotope or atom.
Atomic Structure: The number of fundamental particles in an atom or isotope.Carbon-14 is the radioactive isotope of carbon that is used in radiocarbon dating.
How many neutrons in this isotope
How many neutrons in this isotope
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14
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6
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8
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12
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The number of electrons present in an atom of chromium-52 is
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24 because the electrons are positive like protons.
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24 because the electrons are negative to balance the positive protons.
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28 because electrons are positive like the neutrons.
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28 because electrons are negative to balance the positive neutrons.
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Isotopes are atoms of the same element with different mass numbers.
This means that isotopes will
This means that isotopes will
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have the same number of protons but different numbers of neutrons.
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have the same number of protons but different numbers of electrons.
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have the same number of neutrons but different numbers of protons.
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have the same number of neutrons but different numbers of electrons.
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One isotope of magnesium has 12 neutrons and another has 14 neutrons.
The difference between the two isotopes is that
The difference between the two isotopes is that
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the isotope with 14 neutrons is unstable.
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the isotope with 14 neutrons has a larger atomic number.
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the isotope with 12 neutrons has a larger mass number to balance the smaller number of neutrons. | |
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the isotope with 12 neutrons has a smaller mass number, since atomic number and neutrons are combined to make the mass number. |
It was determined that a substance is composed of one isotope, which has 50 neutrons
and 40 electrons. What is the isotope?
and 40 electrons. What is the isotope?
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Tin-90
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Tin-40
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Zirconium-90
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Zirconium-50
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