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Atom
The smallest unit of an element that maintains the chemical properties of the element.
Proton
Subatomic particles that carry a positive charge.
Neutron
These particles carry NO charge.
Electrons
These subatomic particles carry a negative charge.
Molecule
Two or more atoms that are covalently bonded together.
E levels/ e-shells
Where the electrons are located within an atom or molecule.
Valence Shell
Where the outer most electrons are located on an atom.
Valence E.
Refers to the outer most electrons.
Covalent bond
A type of intramolecular bond results from the sharing of valence electrons between atoms.
Polar
Molecules with opposite chargers.
Non-polar
Molecules that share equal charges.
Electronegativity
Refers to an atom’s desire to acquire electrons.
Ionic bond
A bond forming between metal and non-metal atoms.
Salts
Compounds held together by ionic bonds.
Cations
Ions which possess a positive charge because they have more protons than electrons.
Anions
Ions which possess a negative charge because they have more electrons then protons.
Hydrogen bond
Weak chemical bonds that form when a hydrogen atom that is covalently bonded to one.
Note
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