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10 Cards in this Set
- Front
- Back
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Compound |
a substance whose molecules contain atoms of different elements |
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The Periodic table of Elements |
a chart that shows all the known elements |
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Chemical reaction |
The changes that happen in substances during a chemical change |
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Group/Family |
The columns (vertical) on the periodic table of elements. each family of elements have the same number of valence electrons creating the same reactivity. There are 8 families. |
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period/ row |
the rows (horizontally of the Periodic table of Elements. There are 7 rows/periods |
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Atomic Number |
The number on the periodic table of elements that represents the number of protons (positive subatomic particle) within an atom of that element |
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Atomic mass |
The number on the periodic table of elements for each element that represents the amount of molecular matter in an atom by adding the protons and neutrons of the element |
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Organic compound |
matter made from plants or animals and contains the element carbon |
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Inorganic Compound |
any substance in which two or more chemical elements other that carbon are combined |
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Physical change |
a change from one form to another without turning into a new substance |
