Textbook Question
Give the symbol for (c) gamma radiation.
301
views
Ch.21 - Nuclear Chemistry
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
Not the one you use?Change textbookSelect a different textbook
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 21, Problem 10c
Indicate the number of protons and neutrons in the following nuclei: (c) neptunium-237.
Verified step by step guidance1
Identify the element from the given isotope, which in this case is neptunium (Np).
Determine the atomic number of neptunium by referring to the periodic table. The atomic number represents the number of protons in the nucleus.
Understand that the number given in the isotope name (neptunium-237) represents the mass number, which is the sum of protons and neutrons in the nucleus.
Calculate the number of neutrons by subtracting the atomic number (number of protons) from the mass number.
Summarize the findings by stating the number of protons and neutrons in neptunium-237.
Verified video answer for a similar problem:
This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
45sWas this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Atomic Structure
Atoms consist of protons, neutrons, and electrons. Protons are positively charged particles found in the nucleus, while neutrons are neutral particles that also reside in the nucleus. The number of protons defines the element, while the total number of protons and neutrons gives the atomic mass.
Recommended video:
Guided course
02:10
Atom Structure
Isotopes
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons. For example, neptunium-237 has 93 protons (as it is neptunium) and 144 neutrons, distinguishing it from other isotopes of neptunium, which may have different neutron counts.
Recommended video:
Guided course
04:36Isotopes
Nuclear Notation
Nuclear notation is a shorthand representation of an isotope, typically written as 'Element-Mass Number'. For neptunium-237, the notation indicates that the element is neptunium (Np) with a mass number of 237, which is the sum of its protons and neutrons, allowing for easy identification of its nuclear composition.
Recommended video:
Guided course
02:50Standard Notation to Scientific Notation
Related Practice
Textbook Question
Indicate the number of protons and neutrons in the following nuclei: (b) 193Tl.
712
views
Textbook Question
All the stable isotopes of boron, carbon, nitrogen, oxygen, and fluorine are shown in the accompanying chart (in red), along with their radioactive isotopes with t1>2 7 1 min (in blue). (b) Which radioactive isotopes are most likely to decay by beta emission? [Sections 21.2, 21.4, and 21.5]
844
views