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unit 1:Matter
| Question | Answer |
|---|---|
| matter | can thus be defined as anything that has mass and takes up space |
| physical property | is a characteristic that can be observed or measeread without changing the ientity of the substance |
| chemical property | relates to a substance abilty to undergo change that transfrom it itno diffrent substance |
| extensive property | depends on the amount of matter that is present |
| intensive property | do not depend on the amount of present |
| ductility | the ability of substance to be hammered or thined out |
| malleabilty | the ability of substance to be hammered or beateb into sheets |
| volume | a measure of the size of body regoin in three dimension space |
| compressibility | the measure pf how much given volume of the matter when under pressure |
| density | the ratio of the masss of the substance to the volume of the substance |
| evaporate | the change of the substance from a liquid to a gas |
| sublimitaion | the proess in which a solid changes directly into gas |
| vaporation | the prossec by which a liquid or solid changes to gas |
| element | a substance That cannot be seperate or broken down itno simpler substance by chemicals means |
| compound | a substance made up of atoms of two or more diffrent |
| heterogoneous mixture | mixture that are not uniform throught are said to be |
| homogenous mixture | mixtures that uniform in compisition are said to be |
| atom | the smallest unit of an element that maitnains the chemical propeties of that element |
| atomic emission spectrum | The variety of frequencies of electromagnetic radiation (light) seen through a spectroscope that are emitted by electrons as they transition from higher to lower energy levels; unique for each element. |
| atomic radius | one half of the distance bewteen the center of identical atoms that are not bonded together |
| electromagnetic spectrum | all od the frequencies or wavelenghts of electromagnetic radiation |
| electronegativity | a measure of the ability of an atom in a chemical coumpmound to attract electrons |
| frequency | the number of cycle or vibration per unit of time alos the number of waves produces in given amount of time |
| hyphen notation | A way of designing the isotopes of an element using its name (or symbol), a hyphen, and the mass number (example: uranium-238) |
| ionic radius | A measure of the size of an ion of an element in a crystal |
| ionization energy | the prosec of adding or remoiving electrons from atoms or molecules which gives atoms or molecules a net charge |
| isotope | an atom use to express energy equivallent to the amount of wokr done by force of 1 N acting though a distance of 1 M in the direction of force |
| planck's constant | a constant value that relates the energy of a photon of light to its frequency |
| valence electron | an electron that is found in the outmost shell of an atom and that determines the atoms chemical properties |
| wavelength | the ditance from any point on a wave to an identical point of the next wave |
| Electron configuration | |
| Covalent bond | |
| ionic bond | |
| ion | |
| Lewis dot structure (electron-dot notation) | |
| Octet rule | |
| metallic bond | |
| conductivity | |
| polar | |
| nonpolar | |
| nonpolar | |
| bent | |
| tetrahedral | |
| trigonal planar | |
| linar | |
| valence electrons | |
| formula unit | |
| polyatomic ion | |
| VSEPR theory |
Created by:
ks334172
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