We abbreviate the elements because it's faster and takes up less room than writing the names in full. Pretty much the same reason anybody abbreviates anything.
There may be some vestigial traces of alchemical practice there as well, where symbols were used at least partially to keep the uninitiated from understanding alchemical documents, though for the most part scientists actively want for their work to be understood by as many people as possible.
The abbreviation for the word "science" is "sci.".
The abbreviation for mass is m.
The abbreviation for Associate of Occupational Science degree is AOS.
BSc
Cr is the symbol for chromium
The abbreviation for the word "science" is "sci.".
The abbreviation for science fiction is "sci-fi."
The abbreviation for mass is m.
The abbreviation for Associate of Occupational Science degree is AOS.
The abbreviation for the science of Earth and its inhabitants is "Geog." standing for Geography.
The abbreviation for Silver on the periodic table of elements is Ag.
Doctor of Metaphysics is D.M., or D.P.M., while the Doctor of Metaphysical Science is D.MSc.
The abbreviation for a degree in political science is typically "B.A." (Bachelor of Arts) or "B.S." (Bachelor of Science), depending on the focus of the program.
symbols
H is the abbreviation on the table of elements. The 'chemical symbol' for hydrogen is H.
The answer is: Au
The usual one is "sci".