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chem vocab terms 1
Term | Definition |
---|---|
chemistry | 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 with the nuclei of another to form a larger nuclei |
Isotope | Atoms with same number of protons but not the same number of neutrons |
significant Figure | the figure of 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 nucleus of an atom |
electron cloud | System of electrons surrounding the nucleus of an atom |
atom | Smallest particle of a substance that can exist by itself |
Precision | The quality of being exact |
Accuracy | The ability to work without mistakes |
Scientific Notation | Method that expresses the number multiplied by 10 and the appropriate power |
Percent Error | Experimental value minus the accepted value, divided by the accepted value and then multiplied by 100 |
Quantitative Data | Numerical measurements rather than its words |
Qualitative Data | Data in words rather than in numbers |
Specific Heat | The heat required to raise the temperature of the mass of a given substance by given amount |
Precipitate | A solid that is produced by a chemical reaction in solution |