Textbook Question
Write isotopic symbols in the form X-A (e.g., C-13) for each isotope. c. the gold isotope with 122 neutrons
Ch.2 - Atoms & Elements
Chapter 2, Problem 55b
Write isotopic symbols in the form AZX for each isotope. b. the iron isotope with 30 neutrons
Verified step by step guidance1
Identify the element: The element is iron, which has the chemical symbol 'Fe'.
Determine the atomic number (Z): Iron has an atomic number of 26, which means it has 26 protons.
Calculate the mass number (A): The mass number is the sum of protons and neutrons. Here, the isotope has 30 neutrons, so A = 26 (protons) + 30 (neutrons).
Write the isotopic symbol: Combine the mass number (A), atomic number (Z), and the chemical symbol (X) to write the isotopic symbol in the form A/Z X.
The isotopic symbol for the iron isotope with 30 neutrons is written as: ^{A}_{Z}Fe.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Isotopes
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons. This difference in neutron count results in varying atomic masses for the isotopes of the same element. For example, carbon has isotopes like carbon-12 and carbon-14, where the numbers indicate the total number of protons and neutrons.
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Isotopes
Isotopic Notation
Isotopic notation is a way to represent isotopes using the format AZX, where 'A' is the mass number (total protons and neutrons), 'Z' is the atomic number (number of protons), and 'X' is the chemical symbol of the element. For instance, for an isotope of iron with 30 neutrons, the mass number would be 56 (26 protons + 30 neutrons), leading to the notation 56Fe.
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Iron Isotopes
Iron has several isotopes, with the most common being iron-56, which has 26 protons and 30 neutrons. The presence of different isotopes can affect the physical and chemical properties of the element, including its stability and behavior in nuclear reactions. Understanding the specific isotopes of iron is crucial in fields like nuclear chemistry and geology.
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Related Practice
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