Textbook Question
Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (a) The nucleus has most of the mass and comprises most of the volume of an atom.
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Ch.2 - Atoms, Molecules, and Ions
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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Table of contents
- Ch.1 - Introduction: Matter, Energy, and Measurement140
- Ch.2 - Atoms, Molecules, and Ions192
- Ch.3 - Chemical Reactions and Reaction Stoichiometry172
- Ch.4 - Reactions in Aqueous Solution156
- Ch.5 - Thermochemistry151
- Ch.6 - Electronic Structure of Atoms137
- Ch.7 - Periodic Properties of the Elements127
- Ch.8 - Basic Concepts of Chemical Bonding143
- Ch.9 - Molecular Geometry and Bonding Theories167
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces97
- Ch.12 - Solids and Modern Materials129
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics175
- Ch.15 - Chemical Equilibrium107
- Ch.16 - Acid-Base Equilibria127
- Ch.17 - Additional Aspects of Aqueous Equilibria133
- Ch.18 - Chemistry of the Environment88
- Ch.19 - Chemical Thermodynamics140
- Ch.20 - Electrochemistry137
- Ch.21 - Nuclear Chemistry99
- Ch.22 - Chemistry of the Nonmetals66
- Ch.23 - Transition Metals and Coordination Chemistry69
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry11
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Not the one you use?Change textbook
Chapter 2, Problem 22b
Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (b) Every atom of a given element has the same number of protons.
Verified step by step guidance1
Identify the definition of an element: An element is defined by the number of protons in its atoms, which is known as the atomic number.
Understand that the atomic number is unique to each element and does not change. Therefore, every atom of a given element must have the same number of protons.
Recognize that while the number of protons remains constant for a given element, the number of neutrons can vary, leading to different isotopes of the same element.
Evaluate the statement: 'Every atom of a given element has the same number of protons.' This statement is true because the defining characteristic of an element is its number of protons.
Conclude that the statement is true and does not require correction.
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Atomic Structure
Atoms are the basic units of matter, consisting of protons, neutrons, and electrons. The number of protons in an atom's nucleus defines the element and is known as the atomic number. For example, all carbon atoms have six protons, which distinguishes them from other elements.
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Atom Structure
Element Definition
An element is a pure substance that cannot be broken down into simpler substances by chemical means. Each element is characterized by its unique number of protons, which determines its chemical properties and position in the periodic table. Thus, all atoms of a given element share the same number of protons.
True/False Statements in Science
In scientific reasoning, statements can be evaluated as true or false based on empirical evidence and established theories. A true statement accurately reflects scientific understanding, while a false statement may require correction. In this case, the statement about protons is true, as all atoms of a specific element indeed have the same number of protons.
Related Practice
Textbook Question
Consider an atom of 10B. (a) How many protons, neutrons, and electrons does this atom contain?
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Textbook Question
Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (c) The number of electrons in an atom equals the number of neutrons in the atom.
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Textbook Question
The radius of an atom of copper (Cu) is about 140 pm. (a) Express this distance in angstroms 1A 2.
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Textbook Question
The radius of an atom of copper (Cu) is about 140 pm. (b) How many Cu atoms would have to be placed side by side to span a distance of 5.0 mm?
Textbook Question
Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (d) The protons in the nucleus of the helium atom are held together by a force called the strong nuclear force.
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