2.2 Atoms bond to form molecules Flashcards
Chemical Bond
An attractive force that links atoms together in a molecule
Covalent Bond
stability of atoms by sharing one or more pair of electrons
Compound
A pure substance made up of 2 or more elements (H2O)
Electronegativity
The attractive force that an atomic nucleus exerts on electrons
Nonpolar covalent bond
equal sharing of electrons due to equality of electronegativity
Polar covalent bond
unequal sharing of electrons due to unequal amounts of electronegativity (h2o)
ionic attractions
complete transfer of one or more electrons
Ions
electrically charged particles resulting from ionic bonds
Cations
positively charged ions
Anion
Negatively charged ions
Complex Ions
Covalently bonded atoms with an electrical charge
Hydrogen Bond
attraction of negatively charged oxygen to positively charged Hydrogen
hydrophobic
Nonpolar molecules
hydrophilic
Polar Molecules