Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 1MC
Which of the following is false?
- a. An dement is defined by its atomic number.
- b. Ninety-two elements occur naturally.
- c. An atom consists of subatomic particles.
- d. Electron shells Increase in energy closer to the nucleus.
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Chapter 2 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 2.1 - Unstable Atoms Unleashed Because exposure to...Ch. 2.1 - define clement and atom?Ch. 2.1 - What is the mass number of hydrogen? Of helium?Ch. 2.1 - Prob. 2CYLCh. 2.1 - Prob. 2TCCh. 2.1 - explain atomic number and mass number?Ch. 2.1 - What causes the coals of a campfire to glow?Ch. 2.1 - explain radioactivity and its dangers and...Ch. 2.1 - In addition to lower brain activity, what other...Ch. 2.1 - describe electron shells?
Ch. 2.2 - Prob. 1CYLCh. 2.2 - At a physical exam, Thomas, a sedentary...Ch. 2.2 - Prob. 2CYLCh. 2.2 - explain atomic number and mass number?Ch. 2.3 - Unstable Atoms Unleashed Scientists believe that...Ch. 2.3 - Prob. 1CYLCh. 2.3 - The slap of a belly flop provides firsthand...Ch. 2.3 - If you placed a salt crystal in a nonpolar liquid...Ch. 2.3 - Prob. 2CYLCh. 2.3 - Predict how a drop of water on an oil-coated...Ch. 2.3 - explain atomic number and mass number?Ch. 2.3 - Prob. 3TCCh. 2 - Detergents help clean by dispersing fats and oils...Ch. 2 - An atom consists of an atomic nucleus composed of...Ch. 2 - Which of the following is false? a. An dement is...Ch. 2 - Prob. 1RQCh. 2 - Prob. 2ACCh. 2 - An atom that has lost or gained one or more...Ch. 2 - Prob. 2MCCh. 2 - Distinguish between atoms and molecules and among...Ch. 2 - Prob. 3ACCh. 2 - Prob. 3FIBCh. 2 - Prob. 3MCCh. 2 - Prob. 3RQCh. 2 - Prob. 4FIBCh. 2 - Prob. 4MCCh. 2 - Prob. 4RQCh. 2 - Water is described as __________ because each...Ch. 2 - Prob. 5MCCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQ
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- Which of the following statements is incorrect? a. Isotopes have the same atomic number and different mass numbers. b. Atoms have about the same number of electrons as protons. c. All molecules consist of atoms. d. Free radicals are dangerous because they emit energyarrow_forwardWhat 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 nucleus of an atom contains: a. neutrons and electrons b. protons and electrons c. protons only d. neutrons and protons e. neutrons onlyarrow_forward
- 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.arrow_forwardThe name given to the atomic particle found outside the nucleus of an atom isa. proton.b. neutron.c. electron.d. ion.arrow_forwardPlease complete the following question. 3arrow_forward
- What atom has only one proton?a. hydrogen d. a free radicalb. an isotope e. a radioisotopec. helium f. oxygenarrow_forwardA carbon atom contains six protons and six neutrons.A. What are its atomic number and atomic weight?B. How many electrons does it have?C. How many additional electrons must it add to fill its outermost shell? How does this affect carbon’s chemical behavior?D. Carbon with an atomic weight of 14 is radioactive. How does it differ in structure from nonradioactive carbon? How does this difference affect its chemical behavior?arrow_forwardWhich of the following levels in the shell model of an atom can hold up to two electrons? A. The second shell B. The first shell C. The third shellarrow_forward
- All ions have at least one ________ (select all that arecorrect).a. proton c. electronb. neutron d. all of the abovearrow_forwardThe following is made up of two or more different types of elements grouped together as a unit: O a. Cell Ob. Atom O c. Molecule O d. Compound Oe. Tissuearrow_forwardWhich of the following statements are correct? Explain your answers. A. An atomic nucleus contains protons and neutrons. B. An atom has more electrons than protons. C. The nucleus is surrounded by a double membrane. D. All atoms of the same element have the same number of neutrons. E. The number of neutrons determines whether the nucleus of an atom is stable or radioactive. F. Both fatty acids and polysaccharides can be important energy stores in the cell. G. Hydrogen bonds are weak and can be broken by thermal energy, yet they contribute significantly to the specificity of interactions between macromolecules.arrow_forward
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