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Atoms

Atoms - all sciences

TermDefinition
atoms the smallest piece of matter that still has the properties of the element; building blocks of matter
element matter the is composed of only ONE type of atom
proton located in the nucleus and has a positive charge
electron located in the electron cloud outside of the nucleus and has a negative charge
neutron located in the nucleus and has a neutral or no charge
nucleus center of the atom, contains protons and neutrons, most mass of the atom
electron cloud model most modern model of the atom used today
valence electrons electrons located on the outer ring of the atom; responsible for chemical bonding
isotopes atoms of the same element that have different masses; different number of neutrons
atomic number number of protons in an atom
atomic mass number of protons + neutrons in an atom
atomic mass - atomic number = number of neutrons in an atom
Created by: user-1872749
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