It Is You And Only You.....
a: Atomic number ~
b: your Social Security number
What: "The atomic number (Z) of an element is equal to the number of protons found in an atom of that element. The atomic number is like your Social Security number; it acts as a unique identifier for each element because no two elements have the same one."
Useful?
Writer: Not Stated
LCC:
Where:
Date: Jul 15 2013 7:30 PM
# 3357 Critique Analogy