Question

How many protons and neutrons are in this nuclide? $${ }_{26}^{57} \mathrm{Fe}$$

Name: Problem 53, Chapter 17: Introductory Chemistry Essentials
Uploaded: 2021-05-05T13:57:27-08:00
Duration: 1 min 5 s
Channel: David Collins
Description: How many protons and neutrons are in this nuclide? 26^57 Fe

   How many protons and neutrons are in this nuclide?
$${ }_{26}^{57} \mathrm{Fe}$$

Introductory Chemistry Essentials

Tro, Nivaldo J. 5th Edition

Chapter 17, Problem 53

Instant Answer

Solved by Expert David Collins

05/05/2021

Step 1

Here, the number 57 is the mass number (A) which is the sum of the number of protons and neutrons. The number 26 is the atomic number (Z) which represents the number of protons. Show more…

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How many protons and neutrons are in this nuclide? $${ }_{26}^{57} \mathrm{Fe}$$

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Key Concepts

Atomic Number

The atomic number represents the number of protons in an atom's nucleus. It is a defining characteristic of an element and determines its place in the periodic table.

Mass Number

The mass number is the sum of the protons and neutrons in an atom's nucleus. It provides an approximate measure of the atom's mass.

Neutron Number Calculation

The number of neutrons in the nucleus is found by subtracting the atomic number from the mass number. This calculation is essential for determining the specific isotope of an element.

Nuclide Notation

Nuclide notation is a concise method of representing an atom's composition, where the atomic number is written as a subscript and the mass number as a superscript. This notation provides a quick reference to the number of protons and the overall nucleon count.

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