Biology
10th Edition
ISBN: 9780073383071
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 2, Problem 4U
The isotopes carbon-12 and carbon-14 differ in
a. the number of neutrons.
b. the number of protons.
c. the number of electrons.
d. Both b and c are correct.
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Isotopes differ in theira. number of protons.b. atomic number.c. number of neutrons.d. number of electrons.
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The atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the nucleus.c. weight of the atom.d. number of protons in the valence shell.
Chapter 2 Solutions
Biology
Ch. 2 - The property that distinguishes an atom of one...Ch. 2 - If an atom has one valence electronthat is. a...Ch. 2 - An atom with a net positive charge must have more...Ch. 2 - The isotopes carbon-12 and carbon-14 differ in a....Ch. 2 - Which of the following is NOT a property of the...Ch. 2 - Ionic bonds arise from a. shared valence...Ch. 2 - A solution with a high concentration of hydrogen...Ch. 2 - Using the periodic table on page 22, which of the...Ch. 2 - Refer to the element pictured. How many covalent...Ch. 2 - Prob. 3A
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- For 42He*2 The atomic number is f and there are are protons. The mass number is and there are nucleons. There are neutrons. The charge is and there are are electrons. This radiation is called a. alpha b. beta C. gamma d. 0 е. 1 f. 2 g. 3 h. 4 i. 5 j. 6arrow_forwardThe name given to the atomic particle found outside the nucleus of an atom isa. proton.b. neutron.c. electron.d. ion.arrow_forwardFluorine has an atomic number of 9. Which of the following is true of fluorine? O A. It will lose an electron to become a cation. B. It will gain an electron to become an anion. O C. It will form two covalent bonds to fill its outer shell. O D. It will form three covalent bonds to fill its outer shell. d. MacBooarrow_forward
- A substance that has weight and occupies space is calleda. kinetic energy.b. a catalyst.c. matter.d. potential energy.arrow_forward1. Which of the following is true of oxygen that has 8 protons, 8 neutrons, and 8 electrons? A. It has a charge of +8. B. It has a mass number of 8. C. It has an atomic number of 8. D. It has atomic number of 16. 2. Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by all forms of life? A. arsenic B. iodine C. mercury D. ironarrow_forwardChemical reactions that take place in living systems include A. Neutralization reaction B. Condensation reaction C. Hydrolysis reaction D. All the abovearrow_forward
- What is a proton? A. A negatively charged particle B. A positively charged particle C. An element on the periodic table D. Any particle found in the nucleusarrow_forwardThe most abundant element by weight in the human body is a. carbon. b. hydrogen. c. oxygen.d. nitrogen.arrow_forwardMiller and Urey created a reaction chamber that simulated conditions in Earths early atmosphere to test the hypothesis that______. a. lightning-fueled atmospheric reactions could have produced organic compounds b. meteorites contain organic compounds c. organic compounds form at hydrothermal vents d. oxygen prevents formation of organic compoundsarrow_forward
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