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Chapter 13
25
Science
8th Grade
10/31/2011

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Term
Chemical Bonding
Definition
The combining of atoms to form molecules or ionic compounds.
Term
Chemical Bond
Definition
An interaction that holds atoms or ions together.
Term
Valence Electrons
Definition
An electron that is found in the outermost shell of an atom and that determines the atom's chemical properties.
Term
Ionic Bond
Definition
The attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another .
Term
Ion
Definition
A charged particle that forms when an atom or group of atoms gains or loses one or more electrons.
Term
Crystal Lattice
Definition
The regular pattern in which a crystal is arranged.
Term
Covalent Bond
Definition
A bond formed when atoms share one or more pairs of electrons.
Term
Molecule
Definition
A group of atoms that are held together by chemical forces; a molecule is the smallest unit of matter that can exist by itself and retain all of a substance's chemical properties.
Term
Metallic Bond
Definition
A bond formed by the attraction between positively charged metal ions and the electrons around them.
Term
Atomic Number
Definition
The number of protons in an atom.
Term
-ide
Definition
This is used for the names of the negative ions formed when atoms gain electrons
Term
Diatomic Molecules
Definition
These are Molecules made up of two atoms.
Term
Diatomic Elements
Definition
Elements that are found in nature as diatomic molecules
Term
Ductility
Definition
The ability to be drawn into wires.
Term
Malleability.
Definition
The ability to be hammered into sheets.
Term
Electron Dot Diagram
Definition
Diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.
Term
Metal + a metal is...
Definition
A metallic Bond.
Term
Metal + a non-metal is...
Definition
An ionic Bond.
Term
A non-metal + a non-metal is...
Definition
A covalent Bond
Term
Metals
Definition
Elements that are more likely to lose electrons.
Term
Non-metals
Definition
Elements that are most likely to gain electrons.
Term
Mettaloids
Definition
Gain and lose, like carbon has a ton of different types of forms.
Term
Metallic properties
Definition
Ductile, Malleable, shiny, good conductors of electricity and heat,
Term
Charge of a loser
Definition
has a positive charge
Term
Gainers have a ___ charges
Definition
These elements have a negative charge.
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