BONDING REVIEW You need a Periodic Table, Electronegativity table & Polarity chart!
What is the correct bond angle for Bent with 2 lone pairs on the central atom? 105
What is the predicted bond angle for the following compound? 109.5
Write the electron dot notation for sulfur. S
How many valence electrons does CO3-2 have? 24
When predicting bond types, list the range for ionic. 1.7 and higher
What type of melting & boiling points do molecular compounds have? Low melting & boiling points
Are the IM forces (strong or weak) in ionic compounds? Strong
Where are valance electrons found? Outermost energy level
What is an isomer? Compounds with the same molecular formula, but different structural formulas
is the measure of the ability of an atom to attract electrons. Electronegativity
A(n) compound requires less energy (lower temp.) to break weak IM forces between particles Molecular
A single bond is a covalent bond produced by the sharing of pair of electrons between two atoms one
Assign partial charges for the following pair of atoms: N and O N-O Note: O gets the b/c it has a higher electronegativity value!
are forces of attraction between adjacent particles (molecules, atoms, or ions) Intermolecular Forces
What is the predicted bond angle for the following compound? 180
What is the molecular geometry of the following?: Trigonal planar
A chemical bond resulting from electrostatic attraction between positive and negative ions is a(n) IONIC BOND
What is the predicted bond angle for the following compound? 120
What is the probable bond type for K and F? 0.8-4.0 = 3.2 difference so it s IONIC
What is the correct bond angle for tetrahedral? 109.5
How many valence electrons does NH4 +1 have? 8
Are the IM forces (strong or weak) in molecular compounds? Weak
How many electrons does hydrogen need in order to be considered stable? 2
is a covalent bond in which the bonding electrons are shared equally by the bonded atoms NONPOLAR covalent
What are the following considered?: H 2, O 2, N 2, Cl 2, Br 2, I 2, and F 2 naturally occurring Diatomic molecules
What is the predicted bond angle for the following compound? 120
MgF 2 What is the ratio between the ions? 1Mg : 2 F
A triple bond is a covalent bond produced by the sharing of pairs of electrons between two atoms THREE
What is the molecular geometry of the following?: Tetrahedral
When predicting bond types, list the range for polar covalent. 0.3-1.7
What is the molecular geometry of the following?: Linear
A δ - is assigned to the atom with the electronegativity Highest
Ionic compounds contain what type(s) of element(s)? Metals and nonmetals
A(n) compound requires more energy (higher temp.) to break strong IM forces between particles Ionic
What phase(s) of matter would you most likely find ionic compounds? SOLIDS
is the simplest collection of atoms from which an ionic compound s formula can be established Formula unit
What is the molecular geometry of the following: Trigonal pyramidal
What is the correct bond angle for Bent with 1 lone pair on the central atom? 120
Molecular substances usually involve only what type of elements? NONMETALS
What type of melting & boiling points do ionic compounds have? High melting & boiling points
Chemical compounds tend to form so that each atom (by gaining, losing, or sharing electrons) contains eight electrons in its outermost occupied main energy level is known as the Octet Rule
Write the electron dot notation for lithium. Li
What is the predicted bond angle for the following compound? 105
What type of bond is illustrated in the picture? Polar Covalent Bond δ + δ -
are electrons involved in bonding. VALANCE Electrons
is a neutral group of atoms held together by covalent bonds Molecule
What is the correct bond angle for trigonal pyramidal? 107
What is the probable bond type for H and C? 2.1-2.5 = 0.4 difference so it s POLAR COVALENT
is a molecule containing only two atoms Diatomic molecule
What is the correct bond angle for trigonal planar? 120
is an electron pair NOT involved in bonding Lone pair
What is the molecular geometry of the following?: Bent
is an electron pair involved in bonding Bond pair
A double bond is a covalent bond produced by the sharing of pairs of electrons between two atoms TWO
List the 3 elements that are exceptions to the octet rule. H, Be, B
What phase(s) of matter would you find molecular substances? Solids, liquids, gases
What two items needs to be added to the electron dot/structural formulas for polyatomic ions? Bracket Charge
What is the predicted bond angle for the following compound? 107
When predicting bond types, list the range for nonpolar covalent. 0-0.3
What is the correct bond angle for linear? 180
is a covalent bond in which the bonding electrons are shared unequally by the bonded atoms POLAR covalent
What is the probable bond type for H and H? 2.1-2.1= 0 difference so it s NONPOLAR COVALENT
A chemical bond resulting from the sharing of electrons between two atoms is Covalent Bond
What type of bond is illustrated in the picture? Nonpolar Covalent Bond
Use electron-dot formulas to illustrate the formation of ionic bonds involving Ca and F. Ca + F + F Ca +2 + F -1 + F -1 CaF2
Is this molecule Polar or Nonpolar? Cl 2 O You need to use your polarity chart! Polar
Is this molecule Polar or Nonpolar? NCl 3 You need to use your polarity chart! Nonpolar