Write the atomic symbol for the isotope with each of the...

Write the atomic symbol for the isotope with each of the following characteristics:
a. 7 protons, 8 neutrons
b. 29 protons, 36 neutrons
c. 56 electrons, 81 neutrons
d. A calcium atom with 22 neutrons
e. A silver atom with 60 neutrons

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Key Concepts

Mass Number

The mass number is the sum of protons and neutrons in the nucleus of an atom. It appears as a superscript when writing isotope symbols. The mass number helps differentiate between the various isotopes of an element, which contain the same number of protons but a different total number of nucleons.

Isotope Notation

Isotope notation is a standard way of writing information about different isotopes of an element, combining the element symbol with its atomic number and mass number. This notation is crucial for clearly identifying and distinguishing isotopes, particularly in problems involving the number of neutrons and protons.

Atomic Number

The atomic number represents the number of protons in an atom's nucleus. It defines the identity of an element and is placed as a subscript in the isotope notation. Understanding the atomic number is essential for determining the element that a particular atom represents on the periodic table.

Atomic Structure

Atomic structure encompasses the arrangement and number of subatomic particles within an atom, including protons, neutrons, and electrons. A clear understanding of atomic structure is fundamental to working with isotope-related problems, as it directly impacts the derived properties such as atomic number and mass number.

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