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Chemistry Unit 1
Basic Chem vocab
| Question | Answer |
|---|---|
| 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 Figures | 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 |
| 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 |
| Mass Number | Sum of the protons and neutrons in the nucleus of an atom |