structural formula
a depiction of the arrangement of atoms in molecules
single covalent bond
a covalent bond in which only one pair of electrons is shared
double covalent bond
a covalent bond in which two pairs of electrons are shared
coordinate covalent bond
a covalent bond in which the shared electron pairs comes from only one of the atoms
dipole interaction
a covalent bond between two atoms of significantly different electronegatives
hydrogen bond
a type of bond that is very important in determining the properties of water
bond dissociation energy
energy needed to break a single bond between two covalently bonded atoms
polar bond
attraction between polar molecules
the ionic compound has a high melting point
What is a typical characteristic of an ionic compound
the arrangement of bonded atoms
what is shown by the structural formula of a molecule?
two atoms share two electrons (one shared pair of electrons)
how do atoms achieve noble-gas configurations in SINGLE covalent bonds?
to attain a noble-gas electron configuration
why do atoms share electrons in covalent bonds?
nitrogen
what element can form diatomic molecules by triple covalent bonds?
unshared pair
what is the name given to the pairs of valence electrons that do not participate in bonding in diatomic oxygen molecules?
coordinate covalent bond
when one atom contributes both bonding electrons in a single covalent bond, the bond is called a ______________
O
what atom acquires the most negative charge in a covalent bond with hydrogen? (C, O, Na, or S)
polar covalent
a bond formed between a silicon atom and an oxygen atom is likely to be...
hydrogen region of the molecule
When placed between oppositely charged metal plates, the region of a water molecule attracted to the negative plate is the...
motion of electrons
what is thought to cause the dispersion forces?
attraction between polar molecules
what causes dipole interactions?
bonding of a covalently bonded hydrogen atom with an unshared electron pair
what causes hydrogen bonding?
hydrogen's nucleus is electron deficient when it bonds with an electronegative atom
Why is hydrogen bonding only possible with hydrogen
7
How many valence electrons does an iodine atom have (use periodic table)
4
what is the the total number of covalent bonds normally associated with a single carbon atom in a compound?
2
How many electrons are shared in a single covalent bond?
3
How many electrons does a nitrogen atom need to gain in order to attain a noble-gas electron configuration? (use periodic table)
2
How many unshared pairs of electrons does the nitrogen atom in ammonia posses? (NH?) (use periodic table and figure out on piece of paper)
4
how many valence electrons does carbon have? (use periodic table)
4
how many electrons are shared in a double covalent bond?
3
How many covalent bonds are in a covalently bonded molecule containing 1 phosphorus atom and 3 chlorine atoms?
6
how many unshared pairs of electrons are in a molecule of hydrogen iodide? (HI). (use periodic table and work out on paper)
105�
what is the bond angle in a water molecule?
neon is monoatomic because it already has 8 electrons, the noble gas configuration
why is neon monoatomic while chlorine is diatomic
in an ionic bond the electrons are transferred; in a covalent bond they are shared
describe the difference between an ionic bond and a covalent bond.
btw know how to draw the electron dot structure of elements
btw know how to draw the electron dot structure of elements (copy paste this)
Argon, nitrogen, oxygen
Of the following, which 3 are in largest concentrations in the earths atmosphere? Hydrogen, oxygen, nitrogen, argon, xenon, krypton.
nonpolar
is Cl? a nonpolar covalent bond or a polar covalent bond?
polar
Is HCl a polor or nonpolar molecule?
the more energy it requires to break them apart, the more violent the reaction will be
what is the relationship between the magnitude of a molecule's bond dissociation energy and its expected chemical reactivity?
Flourine
Which atom has the greatest electonegativity
the ability of an atom to attract electrons
electronegativy is...