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Physical Science ch9

Matter comparing

QuestionAnswer
atom the smallest unit of an element that retains the properties of the element
density the amount of mass for each milliliter of a substance
molecule consists of two or more atoms joined together as a single particle
element a material that cannot be broken down into anything simpler by using a chemical reaction
ductility the ability to make a material thin without breaking it
nucleus the hard core of an atom
matter anything that has mass and volume
volume measure of how much space an object takes up
metals groups of elements that have conductivity, luster, and flexibility as properties
malleability bending a material without breaking
milliliter unit used to measure volume
pound unit used to measure weight
inch unit used to measure distance
proton 1. has a positive charge 2. located inside the nucleus 3. determines which element it is
neutron 1. has no electrical charge 2. located inside the nucleus
electron 1. has a negative charge 2. located inside an atom BUT outside the nucleus
Uses for the element aluminum 1. mirrors -- because it can be polished to be reflective 2. to cover food -- it reflects heat 3. electrical wiring -- it conducts electricity and is inexpensive 4. cans -- easy to mold into a shape and inexpensive
What is the equation for calculating DENSITY? Density = Mass(divided by)volume
Created by: Team 5