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15 Cards in this Set

  • Front
  • Back
what are the four elements essential to life and just how much do they make up of the living matter?
Nitrogen,Oxygen,Carbon,Hydrogen. They make up 96% of all living matter.
What are the other major elements although in minute quantities that are essential to life?
Phosphorus,Sulfur,Calcium,Pottassium make up the other 4% of all living matter. P,S,Ca,K.
What is the symbol for oxygen
O
Atomic number for oxygen?
8
Percentage of Human body weight for oxygen?
65%
What is the symbol for Carbon?
C
Atomic number for carbon?
6
Percentage of human body weight for carbon?
18.5%
What is the symbol and atomic number for hydrogen?
H and 1.
percentage of human body weight for hydrogen/
9.5%
what is the symbol and atomic number for nitrogen?
N and 7.
percentage of human body weight for nitrogen?
3.3
what is the symbol and atomic number for Calcium.
Ca and 20.
percentage of human body weight for calcium?
1.5%
What is the symbol and atomic number for phosphorus?
P and 15.