Multiple Choice
Which statement is true about radiocarbon dating?
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2. Chemistry
Isotopes
Back2. Chemistry
Isotopes
- Multiple ChoiceWhich career is most concerned with the study of radioactive isotopes?48views
- Multiple ChoiceHow many neutrons are present in an atom of hydrogen-3 (tritium)?16views
- Multiple Choice
What is TRUE about carbon-13 and carbon-14?
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How are Carbon-13 and Nitrogen-15 respectively different from the more abundant isotopes Carbon-12 and Nitrogen-14? Carbon-13 and Nitrogen-15 _______________:
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The atomic number of nitrogen is 7. Nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitrogen-15 contains ________.
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Radioactive isotopes are utilized for all of the following except:
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The isotope Carbon-14 has a half-life of 5,730 years. How many years must pass for a sample of Carbon-14 to break down to ¼ of its original amount?
5508views140rank6comments - Multiple ChoiceIn which of the following will isotopes of an element always differ?1662views
- Multiple ChoiceWhy are radioactive isotopes useful in scientific research?2000views
- Multiple ChoiceA particular carbon isotope has an atomic number of 6 and an atomic mass of 14. The respective numbers of neutrons, protons, and electrons that this carbon isotope has are __________.1804views
- Multiple ChoicePhosphorus-32 (radioactive) has __________ than phosphorus-35 (normal).1390views1rank
- Multiple ChoiceThe most common form of calcium has 20 protons, 20 neutrons, and 20 electrons. Which of the following elements would be an isotope of calcium?8859views
- Textbook Question
We can represent atoms by listing the number of protons, neutrons, and electrons—for example, 2p+, 2p+,2n0,2e− for helium. Which of the following represents the 18O isotope of oxygen?
a. 7p+, 2n0, 9e−
b. 8p+, 10n0, 8e−
c. 9p+, 9n0, 9e−
d. 10p+, 8n0, 9e-
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