Essentials of Human Anatomy & Physiology (12th Edition)
12th Edition
ISBN: 9780134395326
Author: Elaine N. Marieb, Suzanne M. Keller
Publisher: PEARSON
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Chapter 2, Problem 19SAE
Define radioactivity. If an element has three isotopes, which of them (the lightest, the one with an intermediate mass, or the heaviest) is most likely to be a radioisotope, and why?
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Chapter 2 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
Ch. 2 - Prob. 1MCCh. 2 - 2. Pick out the correct match(es) of element and...Ch. 2 - Important functions of water include which of the...Ch. 2 - 4. Alkaline substances include which of the...Ch. 2 - Glucose is to starch as a. a steroid is to a...Ch. 2 - 6. What lipid type is stored in fat deposits...Ch. 2 - Absence of which of the following...Ch. 2 - ATP is not associated with a. a basic nucleotide...Ch. 2 - The element essential for normal thyroid function...Ch. 2 - 10. Factors that increase the speed of chemical...
Ch. 2 - Why is a study of basic chemistry essential to...Ch. 2 - Matter occupies space and has mass. Explain how...Ch. 2 - Prob. 13SAECh. 2 - Prob. 14SAECh. 2 - Prob. 15SAECh. 2 - Prob. 16SAECh. 2 - All atoms are neutral. Explain the basis of this...Ch. 2 - Fill in the following table to fully describe an...Ch. 2 - Define radioactivity. If an element has three...Ch. 2 - Prob. 20SAECh. 2 - Prob. 21SAECh. 2 - Prob. 22SAECh. 2 - The two oxygen atoms forming molecules of oxygen...Ch. 2 - Prob. 24SAECh. 2 - 25. Identify each of the following reactions as a...Ch. 2 - Prob. 26SAECh. 2 - Prob. 27SAECh. 2 - 28. Define pH. The pH range of blood is from 7.35...Ch. 2 - Prob. 29SAECh. 2 - Prob. 30SAECh. 2 - Prob. 31SAECh. 2 - Prob. 32SAECh. 2 - 33. Name the two protein classes based on...Ch. 2 - Prob. 34SAECh. 2 - Prob. 35SAECh. 2 - 36. What is the structural unit of nucleic acids?...Ch. 2 - Prob. 37SAECh. 2 - 38. Explain why you can “stack” water slightly...Ch. 2 - Water is a precious natural resource in...Ch. 2 - Explain the unique chemical makeup and...Ch. 2 - 41. Several antibiotics act by binding to certain...Ch. 2 - 42. Mrs. Roberts, who is in a diabetic coma, has...Ch. 2 - Sarah is quite proud of her slender, model-like...Ch. 2 - Prob. 44CTCh. 2 - Prob. 45CT
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- Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210Po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. They can be stopped by, for example, a sheet of paper or a few inches of air. This property is one reason why authorities failed to discover toxic amounts of 210Po in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of 210Po decay into after it emits an alpha particle?arrow_forwardAn isotope of sodium (Na) has a mass number of 22. How many neutrons does it have? a. 11 b. 12 c. 22 d. 44arrow_forwardWhat enables a radioisotope to substitute for an ordinary (nonradioactive) atom of the same element molecule?arrow_forward
- Polonium is a rare element with 33 radioisotopes. The most common one, P210o, has 84 protons and 126 neutrons. When P210o decays, it emits an alpha particle, which is a helium nucleus 2 protons and 2 neutrons. P210o decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. For example, they can be stopped by a single sheet of paper or a few inches of air. That is one reason why authorities failed to discover toxic amounts of P210o in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of P210o change into after it emits an alpha particle.arrow_forwardAtomic absorption spectroscopy is usually more sensitive than atomic emission spectroscopy because the population of the low-energy states isA) highB) lowC) zeroD) same as for high-energy statesarrow_forwardCarbon-14 is a radioactive material. It contains 6 protons and 8 neutrons. During the process of Carbon-14 decay, one of its 8 neutrons becomes a proton and an electron is formed in the process. Based on this information, select all that apply. The mass number is unchanged by the decay of Carbon-14. The mass number is changed by the decay of Carbon-14. After decay the atom is still Carbon. After decay the atom is not Carbon.arrow_forward
- The most abundant form of carbon has an atomic number of 6 and a mass of 12. A small amount of carbon exists as the isotope carbon 14. What number of protons, neutrons, and electrons would you expect to see in an atom of carbon 14?arrow_forwardWhat if there are a different number of Neutrons? Sometimes elements have a different number of neutrons than usual, so therefore have a different atomic mass. This is what we call an Isotope (a variant form of an element which has the same number of protons but a differing number of neutrons). Sometimes we’ll see Isotopes labeled with their new mass like this: 14C = this is Carbon 14. Notice it has a different mass than what is on your periodic table The average mass of all the isotopes is defined as an element’s Atomic Weight. Can you answer questions about these Isotopes? ELEMENT ATOMIC MASS NUMBER OF PROTONS NUMBER OF NEUTRONS 14C A B C 15N D E F 2H G H I Use your table to look up the number of protons, remember that never changes!arrow_forwardSelect the best answer or answers from the choices given: The mass number of an atom is (a) equal to the number of protons it contains, (b) the sum of its protons and neutrons, (c) the sum of all of its subatomic particles, (d) the average of the mass numbers of all of its isotopes.arrow_forward
- A nitrogen isotope with an atomic mass of 15, and an atomic number of 7, must have: 7 neutrons and 8 electrons 8 neutrons and 7 protons 7 electrons and 8 protons 8 protons and 7 neutrons 7 protons and 8 electronsarrow_forwardfor the first 10 atoms from the periodic table determine: the atom full name and chemical symbol atomic number atomic mass how many protons, Neutrons and electrons? Abundance in naturearrow_forwardIodine has 37 known isotopes. Therefore, the atomic mass has a range of 108-144 amu. Which of the following statements concerning iodine is correct? A) The isotopes of iodine have between 55 and 91 protons. B) An atom of iodine can have between 55 and 91 neutrons. C) The isotopes of iodine will always have the same number of neutrons, but the protons can vary. D) The isotopes of iodine have between 108 and 144 neutrons, but the number of protons will not vary.arrow_forward
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