There are approximately 7 x 1027 atoms in the average human body. This is the estimate for a 70 kg adult human male. Generally, a smaller person would contain fewer atoms; a larger person would contain more atoms. On average, 87% of the atoms in the body are hydrogen or oxygen. Carbon, hydrogen, nitrogen, and oxygen together account for 99% of the atoms in a person. There are 41 chemical elements found in most people. The exact number of atoms of the trace elements varies widely according to age, diet, and environmental factors.
Symbols on California's Flag The once common California grizzly bear (also the official state animal) portrays strength; the star represents sovereignty; the red color signifies courage; and the white background stands for purity.
The 13 rays of red and gold on the top half of the flag represent both the 13 original colonies of the Union, and the rays of the Western setting sun. Red and gold were also the colors carried by Coronado's Spanish expedition in search of the Seven Cities of Cibola in 1540. The bottom half of the flag has the same Liberty blue as the United States flag. Since Arizona was the largest producer of copper in the nation, a copper star was placed in the flag's center. Flag adopted 1917.