BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 2, Problem 3U
An atom with a net positive charge must have more
a. protons than neutrons.
b. protons than electrons.
c. electrons than neutrons.
d. electrons than protons.
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The nucleus of an atom contains:
a.
neutrons and electrons
b.
protons and electrons
c.
protons only
d.
neutrons and protons
e.
neutrons only
. A cation is a(n)a. uncharged atom.b. positively charged atom.c. negatively charged atom.d. atom that has gained an electron
The smallest particle of an element that still has the chemical characteristics of that element is a(n)a. electron. c. neutron. e. atom.b. molecule. d. proton.
Chapter 2 Solutions
BIOLOGY
Ch. 2.1 - Define an element based on its composition.Ch. 2.1 - Describe the relationship between atomic structure...Ch. 2.1 - Explain where electrons are found in an atom.Ch. 2.2 - Relate atomic structure to the periodic table of...Ch. 2.2 - Prob. 2LOCh. 2.3 - Prob. 1LOCh. 2.3 - Prob. 2LOCh. 2.3 - Prob. 3LOCh. 2.4 - Relate how the structure of water leads to...Ch. 2.4 - Prob. 2LO
Ch. 2.5 - Prob. 1LOCh. 2.5 - Prob. 2LOCh. 2.5 - Prob. 3LOCh. 2.6 - Prob. 1LOCh. 2.6 - Prob. 2LOCh. 2 - Data analysis If we call each step on the x-axis...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. 3ACh. 2 - Prob. 4ACh. 2 - If you shake a bottle of oil and vinegar then let...Ch. 2 - The decay of radioactive isotopes involves changes...Ch. 2 - Prob. 1SCh. 2 - A popular theme in science fiction literature has...Ch. 2 - Prob. 3S
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- The property that distinguishes an atom of one element (carbon, for example) from an atom of another element(oxygen, for example) isa. the number of electrons.b. the number of protons.c. the number of neutrons.d. the combined number of protons and neutrons.arrow_forwardThe name given to the atomic particle found outside the nucleus of an atom isa. proton.b. neutron.c. electron.d. ion.arrow_forwardThe weak attractive force between two water molecules forms a(n)a. covalent bond. c. ionic bond. e. isotope.b. hydrogen bond. d. compound.arrow_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_forwardWhich of the following statements about chemicalbonds is true?a. Covalent bonds are stronger than ionic bonds.b. Hydrogen bonds occur between two atoms ofhydrogen.c. Bonding readily occurs between nonpolar andpolar molecules.d. A molecule of water is unlikely to bond with anion.arrow_forwardWhich parts of an element do not vary in number?a. electronsb. neutronsc. protonsd. All of these vary.arrow_forward
- A 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_forwardThe 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_forwardThis occurs when the cations and anions are attracted to the positive and negative ends of water molecules: A. ionic bonding B. dissociation C. covalent bonding D. hydrogen bondingarrow_forward
- Define the following terms: a. dipole b. hydrogen bond c. electrostatic interaction d. covalent bond e. hydrationarrow_forwardA substance that has weight and occupies space is calleda. kinetic energy.b. a catalyst.c. matter.d. potential energy.arrow_forwardAll ions have at least one ________ (select all that arecorrect).a. proton c. electronb. neutron d. all of the abovearrow_forward
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