Multiple ChoiceHow are Carbon-13 and Nitrogen-15 respectively different from the more abundant isotopes Carbon-12 and Nitrogen-14? Carbon-13 and Nitrogen-15 _______________:2803views31rank
Multiple ChoiceThe atomic number of nitrogen is 7. Nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitrogen-15 contains ________.4905views39rank
Multiple ChoiceThe 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?3622views83rank1comments
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 __________. 1161views
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? 6209views
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-1301views
Textbook QuestionFill in the blanks: Isotopes are atoms with the same ______number but different______numbers.250views
Textbook QuestionIn 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?279views
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