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11 Cards in this Set
- Front
- Back
What are the primary elements and percent do they make up of living matter? |
1. Hydrogen (H)
2. Carbon (C) 3. Nitrogen (N) 4. Oxygen (O) 96% |
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What are the 4% elements that account for an organism's mass? |
1. Phosphorus (P)
2. Sulfur (S) 3. Calcium (Ca) 4. Potassium (K) |
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Element
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cannot be broken down to other substances by chemical rxn’s
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What particles are elements composed?
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neutrons, protons, electrons
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Compound |
Substance consisting of 2 or more
different elements combined in a fixed ratio |
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Matter is made up of?
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Elements |
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Matter |
Anything that takes up space and has mass
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Essential Elements
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- 92elements- 25 you can’t live without
- C, O, H, N - Trace elements |
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What is the smallest unit of matter
that still retains the properties of an element |
Atom |
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Elements made up of atoms with a specific # of what? |
subatomic particles
(protons) |
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Matter Flow |
Matter --> Elements --> Atoms --> P, N+, e- |