Want this question answered?
they use the symbol n
symbol
the symbol scientists use to represent the atomic mass number is the letter U.
a star
Hans Holbein died in 1543 in London of the Plague.
chemical symbol
The Mayans
If you are talking about math then its usually " x " but if that is already use in the expression and you want to use another symbol to represent a DIFFERENT number then you can use y or a or so on.
The atomic symbol on the Periodic Table of Elements
American Flag
Rectangles
Use the " symbol, eg 4" is 4 inches.