Multiple Choice
What is TRUE about carbon-13 and carbon-14?
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2. Cell Chemistry & Cell Components
Isotopes
Back2. Cell Chemistry & Cell Components
Isotopes
- Multiple Choice
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?
6136views154rank2comments - Multiple ChoiceIn which of the following will isotopes of an element always differ?1947views
- Multiple ChoiceWhy are radioactive isotopes useful in scientific research?2288views
- 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 __________.2075views
- Multiple ChoicePhosphorus-32 (radioactive) has __________ than phosphorus-35 (normal).1668views1rank
- 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?9499views
- Textbook QuestionWe can represent atoms by listing the number of protons, neutrons, and electrons—for example, 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-2337views
- Textbook Question
Isotopes are atoms with the same ______ number but different ______ numbers.
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In certain types of radioactive decay, the isotope releases a particle called an alpha particle, which contains two protons and two neutrons. When this happens, is the product still the same element? Why or why not?
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