Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 2, Problem 4FIB
Summary Introduction
Introduction:
The smallest unit of an element is called as an atom. An atom comprised of protons, one or more neutrons, and electrons. An atom with the completely full outermost shell is described as inert and partially filled outermost shell can describe as reactive.
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Chapter 2 Solutions
Biology
Ch. 2.1 - What is the mass number of hydrogen? Of helium?Ch. 2.1 - Unstable Atoms Unleashed Because exposure to...Ch. 2.1 - Prob. 2TCCh. 2.1 - What causes the coals of a campfire to glow?Ch. 2.1 - In addition to lower brain activity, what other...Ch. 2.1 - define clement and atom?Ch. 2.1 - Prob. 2CYLCh. 2.1 - explain atomic number and mass number?Ch. 2.1 - explain radioactivity and its dangers and...Ch. 2.1 - describe electron shells?
Ch. 2.2 - At a physical exam, Thomas, a sedentary...Ch. 2.2 - Prob. 1CYLCh. 2.2 - Prob. 2CYLCh. 2.2 - explain atomic number and mass number?Ch. 2.3 - The slap of a belly flop provides firsthand...Ch. 2.3 - Prob. 1TCCh. 2.3 - Predict how a drop of water on an oil-coated...Ch. 2.3 - Prob. 3TCCh. 2.3 - Prob. 1CYLCh. 2.3 - Prob. 2CYLCh. 2.3 - explain atomic number and mass number?Ch. 2.3 - Prob. 1CTCh. 2 - Which of the following is false? a. An dement is...Ch. 2 - Prob. 2MCCh. 2 - Isotopes are defined as a. atoms of the same...Ch. 2 - Prob. 4MCCh. 2 - Prob. 5MCCh. 2 - An atom consists of an atomic nucleus composed of...Ch. 2 - An atom that has lost or gained one or more...Ch. 2 - Prob. 3FIBCh. 2 - Prob. 4FIBCh. 2 - Water is described as __________ because each...Ch. 2 - Prob. 1RQCh. 2 - Distinguish between atoms and molecules and among...Ch. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Detergents help clean by dispersing fats and oils...Ch. 2 - Prob. 2ACCh. 2 - Prob. 3AC
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- What atom has only one proton? a. hydrogen c. a free radical b. an isotope d. a radioisotopearrow_forwardA carbon atom can form up ________ to bonds with other atoms. a. four b. six c. eight d. sixteenarrow_forwardAtoms share electrons unequally in an _______ bond. a. ionic c. polar covalent b. hydrogen d. nonpolar covalentarrow_forward
- What atom has only one proton? a. hydrogen b. an isotope c. helium d. a free radical e. a radioisotope f. oxygenarrow_forwardA. 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_forward
- 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 b. an isotope c. a free radical d. a radioisotopearrow_forwardVisit this website (http://openstaxcollege.org/l/ptable) to view the periodic table. In the periodic table of the elements, elements in a single column have the same number of electrons that can participate in a chemical reaction. These electrons are known as valence electrons. For example, the elements in the first column all have a single valence electron—an electron that can be donated in a chemical reaction with another atom. What is the meaning of a mass number shown in parentheses?arrow_forward
- What kinds of bonds often control the shape (or tertiary form) of large molecules such as proteins? a. hydrogen b. ionic c. covalent d. inert e. singlearrow_forwardAll ions have at least one ________ select all that are correct. a. proton c. electron b. neutron d. all of the abovearrow_forwardEach carbon atom can bond with as many as _________ other atoms.arrow_forward
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