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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Matter |
Anything that takes up space and has mass. |
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Element |
A substance that cannot be broken down to other substances by chemical reactions. |
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Compound |
A substance consisting of two or more elements. |
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Essential elements |
Needed by an organism to live a healthy life and reproduce. |
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Trace elements |
Elements required in only minute quantities by an organism to live. |
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Atom |
The smallest unit of matter that still retains the properties of an element. |
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Neutron properties |
-No electrical charge -1 AMU |
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Proton properties |
-Positive charge -1 AMU |
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Electron properties |
-Negative charge -No measurable mass |
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Atomic number |
Number of protons in an elements nucleus. |
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Mass number |
Sum of protons plus neutrons in an elements nucleus. |
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Atomic mass |
Atoms total mass, approximated by mass number. |
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Isotopes |
Two atomic forms of an element that differ in number of neutrons. |
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Radioactive isotopes |
Decay spontaneously, releasing particles and energy. |
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Energy |
Capacity to cause change |
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Potential energy |
The energy that matter has because of its location or structure. |
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