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Chemistry Vocab 1
Chemistry vocab 1
Term | Definition |
---|---|
Chemistry | A science that deals with structures and properties |
Noble Gas | Group 18 in the periodic table with a full outer shell |
Atomic number | The number of protons in the nucleus of an atom |
Nuclear Fusion | A reaction where the nuclei of one atom combines with the nuclei of another to form a larger nuclei |
Isotope | Atoms with the same number of protons but not the same number of neutrons |
Significant Figures | The figure of a number that expresses a magnitude to a specific degree of accuracy |
Density | Mass per unit of volume |
Metalloid | Elements with the properties of both metals and non-metals |
Mass Number | Sum of protons and neutrons in the nucleus of an atom |
Electron Cloud | System of electrons surrounding the nucleus of an atom |
Atom | The smallest particle of a substance that can exist by itself |
Precision | The quality of being exact |
Accuarcy | The ability to work without making mistakes |
Scientific Notation | The method of expressing the number multiplied by 10 and the appropriate power |
Percent Error | Experimental value minus the accepted value, divided by the accepted and then multiplied by 100 |
Quantitative Data | Numerical measurements rather than 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 a given amount |
Precipitate | A solid produced by a chemical reaction in solution |