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atomic theory
Question | Answer |
---|---|
metals | class of elements characterized by shininess, malleability, ductility, and conductivity. |
Malleable | describes material that can be pounded into shapes. |
Ductile | describes material that can be pulled into a long wire. |
Conductivity | when an object transfers heat to another object. |
Reactivity | ease and speed with which an element combines, or reacts with other elements and compounds. |
Corrosion | the gradual wearing away of an element due to a chemical reaction. |
Plasma | a gas like state of matter consisting of a mixture of free electrons and atoms that are stripped free of their electrons. |
Nonmetal | an element that lacks all the characteristics of a metal. |
Metalloid | has characteristics of both metals and non- metals. |
Semiconductor | conduct electricity under some conditions. |
luster | has characteristics of a metals and it mean to shine |
dull | has characteristics of a nonmetals and it mean no luster |
evaporation | liquid goes into gas form at temp below boiling |
condensation | change from gas to liquid |
freezing | change from liquid to solid |
sublimation | change from solid to gas OR gas to solid without going through liquid phase |
melting | change from solid to liquid |
boiling | bubbles from within liquid that is heated |
gas | no difinite shape or volume; molecules bounce off each other |
liquid | definite volume; takes shape of container;molecules glide over each other |
solid | definite shape and mass, molecules vibrate and tightly packed |