Elements:a substance that cannot be broken down any further into anything simpler.
Atom:the smallest particle of an element that have the same chemical property as the element.
Nucleus:an atom dense center,where most of its mass is.
Electrons:a negatively charge particle that moves around an atom,s nucleus.
Proton:a possitively charge particle inside an atoms nucleus.
Neutron:a particle with no charge inside a atoms nucleus
Atomic Number:the number ofd protons in an atom.
Metal:any of a group of elements that cunduct heat and electricity,is shiny and bendable.
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