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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Magnesium has an atomic number of 12. Which of the following statements is true of a neutral magnesium atom? a. It has 12 protons, 12 electrons, and 12 neutrons. b. It has 12 protons, 12 electrons, and six neutrons. c. It has six protons, six electrons, and no neutrons. d. It has six protons, six electrons, and six neutrons.arrow_forwardWhat atom has only one proton? a. hydrogen c. a free radical b. an isotope d. a radioisotopearrow_forwardWhich statement is true of all atoms that are anions?(A) The atom has more electrons than protons.(B) The atom has more protons than electrons.(C) The atom has fewer protons than does a neutral atomof the same element.(D) The atom has more neutrons than protons.arrow_forward
- The atomic mass of an element can be used to determine A) the chemical properties of the element B) the number of protons in the element C) the number of neutrons in the element D) the number of protons plus neutrons in the element E) both the number of protons and the chemical properties of the elementarrow_forwardRefer to the following figure (first three rows of the periodic table) to answer the questions below. What element does not react with other elements? Group of answer choices A. hydrogen B. helium C. oxygen D. siliconarrow_forwardWhich element is a metal? A. C B. Rn C. CI D. Crarrow_forward
- What do you call the smallest unit of particle in the universe? a. Cell b. Atom c. Nucleus d. Matterarrow_forwardWhich statement is false? A. Elements are found in compounds and molecules B. compounds are made of elements C. a molecule must be made of at least two atoms D. chemical bonds form between molecules of solute and solvent E. two atoms of oxygen make a molecule of oxygenarrow_forwardAlchemists were the forerunners of modern-day chemists. Many of these medieval scholars and philosophers spent their lives trying to transform lead (atomic number 82) into gold (atomic number 79). Explain why they never succeeded.arrow_forward
- A. The first shell corresponds to the first energy level, and it can hold up to 2 electrons. Hydrogen has one proton, so it has 1 electron and one vacancy. A helium atom has 2 protons, 2 electrons, and no vacancies. B. The second shell corresponds to the second energy level, and it can hold up to 8 electrons. Carbon has 6 electrons, so its first shell is full. Its second shell has 4 electrons and four vacancies. Oxygen has 8 electrons and two vacancies. Neon has 10 electrons and no vacancies. C. The third shell corresponds to the third energy level, and it can hold up to 8 electrons. A sodium atom has 11 electrons, so its first two shells are full; the third shell has one electron. Thus, sodium has seven vacancies. Chlorine has 17 electrons and one vacancy. Argon has 18 electrons and no vacancies. Figure It Out: Which of these models have unpaired electrons in their outer shell?arrow_forwardOxygen (O) is a(n) _______; the oxygen we breathe (O2) is a(n) _______; and the carbon dioxide we exhale is a(n) _______. a. compound; molecule; element b. atom; compound; element c. element; atom; molecule d. atom; element; molecule e. element; molecule; compoundarrow_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_forward
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