Chemistry Chapter 10

Chemical Bond

between the nucleus of one atom atom and the valence electrons of a different atom

ionic bond

the valence electrons are transferred

Covalent Bond

the valence electrons are shared

molecule

a neutral group of atoms held by covalent bonds

molecular compound

a covalent bond of nonmetals

potential energy when bonded is

lowered

bond length decreases

as you move from single to triple bond

bond energy

increases as you move from single to double

what is the easiest bond to seperate

low bond energy

VSEPR

Valence shell electron pair repulsion

VSEPR are used to

determine the shapes of moleculeselectro

electronegativity

the ability of an element to attract a bond

pure covalent

when 2 elements share bonding electrons equally

ionic bond

metal - nonmetal electrons transfer to nonmetal, large electronegativity difference

polar covalent

middle difference in electronegativity, nonmetals

polar molecule

one w polar bonds that create dipole

bond between 2 atoms are polar covalent

polar

bond between 2 atoms are pure covalent

nonpolar

Symmetric, nonpolar

linear, tetrahedral, trigonal planar

Asymmetric Polar

trigonal pyramidal, bent

like dissolves like

polar dissolves polar

Why is H2O a good solvent?

Attracts Cation and Anion