Uploaded August 2025 | Updated September 2026, 2 weeks ago
AZX Notation
Dr. DeBacco
The A/Z/X atomic notation (also called AZX notation or nuclear symbol notation) is a shorthand way to represent specific isotopes of chemical elements.
It tells you the composition of an atom’s nucleus in terms of protons, neutrons, and mass.
General Format
A = Mass number (total number of protons + neutrons)
Z = Atomic number (number of protons)
X = Chemical symbol of the element
Examples
More Examples
Link to Lecture Slides: drive.google.com/file/d/1PDHIuHwwXXlkv-pw4kTvw_V6cI52xLz_/view?usp=drive_link
*Due to the description character limit the full work cited for "A Z X Notation" can be viewed at... docs.google.com/document/d/1dQqYHEZT1zwohzcFRHWlYtP0ZizIk9s4/edit?usp=drive_link&ouid=104237452697237972847&rtpof=true&sd=true
AZX Notation
Dr. DeBacco
The A/Z/X atomic notation (also called AZX notation or nuclear symbol notation) is a shorthand way to represent specific isotopes of chemical elements.
It tells you the composition of an atom’s nucleus in terms of protons, neutrons, and mass.
General Format
A = Mass number (total number of protons + neutrons)
Z = Atomic number (number of protons)
X = Chemical symbol of the element
Examples
More Examples
Link to Lecture Slides: drive.google.com/file/d/1PDHIuHwwXXlkv-pw4kTvw_V6cI52xLz_/view?usp=drive_link
*Due to the description character limit the full work cited for "A Z X Notation" can be viewed at... docs.google.com/document/d/1dQqYHEZT1zwohzcFRHWlYtP0ZizIk9s4/edit?usp=drive_link&ouid=104237452697237972847&rtpof=true&sd=true










