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Chemisty Vocab 1
Term | Definition |
---|---|
Chemisty | A science that deals with the structure and properties |
Noble Gas | Group 18 in the periodic table with a full outer shell |
Atomic Number | Number of protons in the nucleus in an atom |
Nuclear Fusion | Reaction in which the nuclei of one atom combines witht he nuclei of another to form a larger nuclei |
Isotope | Atoms with the same number of protons but not the same number of nuetrons |
Significant Figure | A number that express a magnitude to a specified degree of accuracy |
Density | Mass per unit of volume |
Metalloid | Element with the properties of both metals and nonmetals |
Mass Number | Sum of the protons and neutrons in the nucles of an atom |
Electron Cloud | System of electrons surroundign the nucles of an atom |
Atom | Smallest particle of a substance that can exist by itself |
Precision | The quality of beign exact |
Accuracy | The ability to work wihtout mistakes |
Scientific Notation | Mathod that expresses the number multiplied by 10 and the appropriate power |
Percent error | Experiemental value minus the accpeted value, divided by the accepted balue and then multiplied by 100. |
Quantative Data | Numerical measurements rather than words |
Qualitive Data | Data in words ratehr than in numbers |
Specific Heat | the heat requred to raise the tempature of the mass given of a substance by given amount |
Precipitate | A solid that is produced in a chemical reaxtion in solution |
Ion | atom that has gained or lost oine or more elctrons |