Elements and Atoms

element: a substance that cannot be broken down any further into anything simpler.


atom: the smallest particle of an element taht has the same chemical properties as the element.


nucleus: a n atom's dense center, where most of its mass is.


electron: anegatively charged particle that moves around an atom's nucleus.

proton: a positively charged particle inside an atom's nucleus.

neutron: a particle with no charge inside an atom's nucleus.

atomic number: the number of protons in an atom.


metal:  a ny of a group of elements that conduct heat and elctricity, is shiny and bendable.