 |  Environmental Science: A Global Concern, 7/e William P. Cunningham,
University of Minnesota
Mary Ann Cunningham,
Vassar College
Barbara Woodworth Saigo,
St. Cloud State University
Chart of Common Elements
The Symbols, Atomic Numbers, and Atomic Mass of Some Common Elements | Element | Symbol | Atomic Number | Atomic Mass | | Hydrogen | H | 1 | 1 | | Boron | B | 5 | 10.8 | | Carbon | C | 6 | 12 | | Nitrogen | N | 7 | 14 | | Oxygen | O | 8 | 16 | | Sodium | Na | 11 | 23 | | Magnesium | Mg | 12 | 24.3 | | Phosphorus | P | 15 | 31 | | Sulfur | S | 16 | 32 | | Chlorine | Cl | 17 | 35.4 | | Potassium | K | 19 | 39.1 | | Calcium | Ca | 20 | 40.1 | | Manganese | Mn | 25 | 54.9 | | Iron | Fe | 26 | 55.8 | | Cobalt | Co | 27 | 58.9 | | Copper | Cu | 29 | 63.5 | | Zinc | Zn | 30 | 65.4 | | Molybdenum | Mo | 42 | 95.9 |
These elements are essential for plant life; each has one or more vital roles. If any one is missing, a plant cannot survive. Atomic number corresponds to the number of protons in the atomic nucleus; atomic mass is the number of protons plus neutrons in each nucleus. |
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2003 McGraw-Hill Higher Education