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23 Cards in this Set
- Front
- Back
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A whole field of science devoted to the chemistry of life |
Biochemistry |
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What is mass? |
Anything that occupies space and has mass |
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The smallest unit of matter |
Atom |
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Composition of one or more atom |
Molecules |
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Basic unit of matter |
Atom |
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The subatomic particles |
Protons Neutrons Electrons |
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Where do you find nucleus? |
Core of the atom |
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Positively charged atom |
Proton |
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What is the number of protons in the nucleus called? |
Atomic number |
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How do you calculate the atomic mass |
Protons + neutrons |
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Negatively charged subatomic particle |
Electrons |
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What happens if an atom has no electric charge? |
Protons are equal to the electrons |
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What happens if an atom has an electric charge? |
Protons and the neutrons are not equal |
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Where does electrons move around? |
In the orbitals |
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How are orbitals arranged? |
Into energy cells |
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How many energy shells are housed in the orbital closest to the core of an atom? |
Two |
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How many electrons are found in the orbitals away from the core? |
8 |
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Classification of substances |
Elements or compounds |
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Name the four atoms that makes up 96% of the human body |
Oxygen Carbon Hydrogen Nitrogen |
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What is a compound? |
Substances whose molecules have more than one element |
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The elements that makes up the compound carbon dioxide |
Carbon and Oxygen |
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How many atoms are in carbon dioxide? |
One carbon atom and two oxygen atoms |
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What is Co2 |
Carbon dioxide |
