Matter ppt

Matter

What is Matter?• Anything that has massand takes up space.• Mass is a measure ofthe amount of matter.

Atoms and Molecules Fundamentalbuilding blocksof all matterThe atom is thesmallest unit ofan element thatmaintains thechemicalidentity of thatelement

Elements Fundamental substances Composed of one type ofatoms (pure) Cannot be broken downinto other substances bychemical means Can be found in the ‘FreeState’ or the “CombinedState”

ExtensivePropertiesDepend on theamount of matterthat is presentVolumeMassEnergy

IntensivePropertiesDo not depend on theamount of matterpresentMelting pointBoiling pointDensityAbility to conductelectricityTransfer heat energy

Soilds•Rigid•Definite Shape•Definite Volume•Not Compressible•Highly Organized

Liquids•Definite Volume•No Definite Shape•Not Compressible•Pseudo-organized•Takes shape ofcontainer•“Flows”

Gases•No Definite Shape•No Definite Volume•Compressibility•Highly Unorganized•Flows

PlasmaHightemperaturephysical state ofmatterAtoms losemost of theirelectrons

ElementsFree StateCombined State

Chemical Compounds Any substance thathas a definitecomposition Constituentelements alwayspresent in the sameproportion Compounds can bebroken down bychemical means2KClO 3 → 2KCl + 3O 2