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domingo, 20 de marzo de 2011

Element and Atom

Element:a substance that cannot be broken down any futher into anything simpler.










Atom:the smallest particlee of an element that has the same chemical properties as the element.











Nucleus:an atom"s dense center, where most it mass is.










Electron:a negatively charge particle that move araund an atoms nucleus.



Proton:a posotively charge particle inside an atom nucleus.




Neutron:a particle with no charge inside an atom nucleous.´




Atomic: Number:the nbunber of protons in an atom.´



Metal:any of a grup of element  that conduct head an electricity is shiny an bendable.



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