The Basics of Chemistry

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element

Building blocks (everything is composed of elements

atom

smallest amount of an element that retains the trait of the element (Fe)

molecule

smallest amount of a compound that retains the trait of the compound

compound

a combination of atoms bound together with a specific trait (like water H2O

proton

positively charged particle, 1 atomic mass unit (amu), found in nucleus

neutron

neutral particle, 1 amu, found in nucleus

electron

negatively charged particle, practically no mass, found in the outsides

ion

charged particle (either missing electron(s) or extra electron(s)

indicator

something that changes to tell you another thing is present

nucleus

is the center of the atom (protons & neutrons tightly packed together)

electron orbitals

area where electrons are likely to be found

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