jueves, 19 de agosto de 2010

What Matter Is Made Of

Element : A basic building block of matter, apure susbtance that cannot be broken down into anything simpler



Compound : Achmical conbination of two or more elmnts into a single substance



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Atom: The smallst unit of an elment that still has the propertis of th elmnt .


Proton : Aparticle with a positive charg in the nuclous of an atom
Neutron : An uncharged particle in th nucleous  of an atom


Elctron. A particle with a ngative charge moving around the nuclous of an atom.



Nucleous: The dense center part of an atom.



Molecule: A group of more than one atom joined together that acts like a single particle .

INTRODUCTION

The atom ar made of protons neutron and electron .

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