Term
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Definition
| anything that occupies space and has weight |
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Term
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Definition
| a substance which cannot be reduced to a simpler substance by chemical means |
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Term
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Definition
a chemical combination of elements which can be separated by chemical
but not by physical means |
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Term
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Definition
a combination of elements and compounds, not chemically combined, that can be separated by physical
means |
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Term
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Definition
| a chemical combination of two or more atoms |
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Term
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Definition
the smallest particle of an
element that retains the characteristics of that element |
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Term
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Definition
| a negatively charged subatomic particle |
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Term
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Definition
| a positively charged subatomic particle |
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Term
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Definition
| a neutrally charged subatomic particle |
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Term
| What is the nucleus(when referring to an atom)? |
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Definition
| the very dense region consisting of protons and neutrons at the center of an atom |
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Term
| What is the valence shell? |
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Definition
| The outermost shell of an atom consisting of the valence electrons |
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Term
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Definition
| an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge |
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