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10 Cards in this Set
- Front
- Back
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what are the characteristics of an allotrope? |
several crystalline forms of an element includes charcoal, graphite and carbon, which are allotropes of carbon. |
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atomic mass |
The mass of a chemical element It is expressed in atomic mass units It is at the bottom of the elemental symbol on the periodic table |
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atomic number |
the number of protons found in its nucleus it is identical to the charge number of the nucleus. |
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halogens |
five related non-metal elements they readily form negative ions |
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polyatomic ions |
a group of two or more atoms covalently or metallically bonded they function as a single ion e.g. OH, |
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distance |
the total amount you moved |
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displacement |
where you end in relation to where you started |
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speed |
the rate at which something moves |
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velocity |
the speed of something in a given direction |
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scalar |
having only quantity, not direction |
