click below
click below
Normal Size Small Size show me how
Ch.4 Vocab Chem Sofi
Electrons
Term | Definition |
---|---|
Electromagnetic radiation | a form of energy that exhibits wavelike behavior as it travels through space |
Electromagnetic Spectrum | Formed by all the forms of electromagnetic radiation |
Wavelength | the distance between corresponding points in adjacent waves |
Frequency | number of waves that pass through a specific point time |
Hertz | the measure of frequency waves/second |
Ground State | The lowest energy state of an atom |
Excited State | A state in which an atom has a higher potential energy than its qround state |
Line Spectrum | The spectrum of 4 colors emitted through a prism |
Continuous Spectrum | The spectrum of a continuous range of frequencies of electromagnetic radiation |
Emission | When the electron falls to a lower energy level a proton is emitted |
Absorbtion | Energy must be added to an atom in order to move an electron from a lower energy level to a higher energy level |
Orbital | A three-dimensional region around around the nucleus that indicates the probable location of an electron |
Principal quantum number | "n" indicates the main energy occupied by an electron occupied by the electron |
Angular momentum quantum number | Symbolized by "l" indicates the shape of the orbital |
Electron configuration | The arrangement of electrons in an atom |
Noble Gas | Group 18 elements (helium, neon, argon, krypton |
Noble Gas Configuration | An outer main energy occupied in most cases by 8 electrons |