chapter 6 Flashcards
ionic bonding is the attraction between_____
anion and cations
-completely giving up/ accepting electrons
covalent bonding attraction that results in _____
the sharing of electrons
polar- 2 bonded atoms with an ______ electrical charge
uneven electrical charge
polar-covalent atoms have an _____ attraction for the shared electron
an unequal attraction
non-polar covalent have an ___ or _____ attraction
equal or nearly equal
electronegativity
an atom’s ability to attract electrons within a chemical bond
0-0.3
nonpolar-covalent
.3-1.7
polar-covalent
1.7 or above
ionic
less electronegative atom becomes
positive
the more electronegative atom becomes
negative
molecule compounds that are bonded _____
covalently
formula unit compounds that are bonded ______
ionically
compound 2 or more elements that are _____ bonded together
chemically bonded together
simplest units of a molecular compound______
molecules
a chemical bond is the attraction between_____
the nucleus of one atom and the valence electron of the other
covalent bonds follow the ______
octet rule
covalent bonds tend to have high ______ energies
bond
ionic compound is composed of
positive and negative ions
ionic compounds form______, instead of discrete units
crystal structures
crystal lattice and orderly arrangement of ______
ionically bonded atoms
polyatomic ions are ____ groups of _____ bonded atoms
- charged
- covalently
2 ways of naming cations
- classical system
- stock system
binary molecular compounds are _____ bonded containing ______ different elements/ types of atoms
- covalently
- 2
why do atoms form chemical bonds
- to become more stable
- to have a full octet
what is bond energy
energy stored in a bond
low melting/ boiling point, high bond strength
covalent
high melting/boiling point, low bond strength
ionic
ionic _____ or _______ of electrons
gain or loss
covalent _____electrons
shared
nonpolar _______electronegativity
equal
polar ______ electronegativity
unequal
what is a binary compound
two elements bonded together
when writing a binary ionic compound, which ion comes first?
metal, nonmetal second
when writing a binary covalent compound, which element comes first?
one with lower electronegativity
