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| The study of matter and the changes it undergoes. |
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| Anything that has mass and takes up space. |
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| A measure of the quantity of matter in a substance. |
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| A characteristic that can be observed or measured without changing its identity. |
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| A change in a substance that does not involve the change in its identity. |
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| Matter that has a definite volume and definite shape. |
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| Matter that has definite volume and an indefinite shape. |
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| Matter that has indefinite shape and volume. |
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| Relates to the reactivity of a substance or a substances ability that undergoes changes into different substances. |
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| A chemical that has a fixed composition throughout. You can't physically separate it. |
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| A measure of how close measurements are to one another. |
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| A measure of how close the measurement is to the true or accepted value. |
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D=M/V
A measure of how the amount of mass an object contains in a given amount of volume. |
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Identification number of an element.
How many protons and electrons are in an atom. |
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Tells the mass number of an atom in a.m.u.
Sum of protons and neutrons in an atom. |
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| Different numbers of neutrons. |
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| Horizontal row of elements on the periodic table of elements. |
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| A vertical row of elements on the periodic table of elements. |
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| Law of Conservation of Mass |
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| Matter is neither created nor destroyed in a chemical reaction. |
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| How many wave-cycles are completed per second. Measured in hertz (Hz). |
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| Smallest amount of energy an object can absorb or release. |
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| A quantum of energy in the form of light. |
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S=sphere
P=kissing pears
D=cloverleaf |
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C= "lamda" (v)
C= speed of light (3 x 10^8 m/s)
"lamda" = wavelength
v = frequency |
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| for orbitals of equal energy orbital must be equally filled. |
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