What is the symbolic notation of an isotope of an element with 8 protons, 8 electrons, and 9 neutrons?

The symbolic notation of an isotope of an element with 8 protons, 8 electrons, and 9 neutrons is written as ¹⁷O. Here’s how it is derived:

• The element with 8 protons is Oxygen, which is represented by the symbol ‘O’.
• The mass number of the isotope is calculated by adding the number of protons and neutrons. In this case, 8 protons + 9 neutrons = 17.
• Therefore, the isotope is denoted as ¹⁷O, where the superscript ’17’ represents the mass number, and ‘O’ is the chemical symbol for Oxygen.

This notation helps in identifying the specific isotope of an element based on its atomic structure.