scinevec key terms Flashcards
Valence electrons
Electrons in an atom held most loosely w/ high energy and involved in chemical bonding
Chemical bond
The force of attraction that holds two atoms together as a result of rearrangement of electrons between them
Covelant bond
The chemical bond formed when two atoms share electrons
Molecule
A neutral group of atoms joined by covelant bonds
Nonpolar
A covelant bond in which electrons are shared equally
Polar
A covelant bond in which electrons are shared unequally
Ion
An atom or group of atoms that has an electric charge
Ionic compound
A compoud that consists of positive and negative ions
Ionic bond
The attraction between two oppositely charged ions
Molecular compound
A compound that is composed of molecules
Polyatomic ion
Ions that are made of more than one atom
Subscript
A character used to tell you the ratio of elements in a compund
Alloy
A mixture made of two or more elements that has the properties of metal
