Chemical Bonds Flashcards
Distinguish ionic bonds from covalent bonds
Electrons transfer from 1 atom to another, shows cations and anions
Distinguish polar covalent compounds in electron dot formulas
Unequal sharing, lone pairs of valence electrons
What happenes to valence elctrons in nonmetals and metals in ionic bonds respectively
Nonmetals: Gain electrons forming an anion
Metals: give up electrons forming cations
Which shape for most ionic compounds like sodium bromide and magnesium chloride
linear shape
Which compounds have tetrahedral shape and equal pairing
CH4 (Methane)
Compound with trigonal shape nad one lone pair of electrons
NH3 (Ammonia)
Compound has a bent shape with two lone pairs of electrons
H20 (Water)
Substances that have molecules
water, methane, ammonia
Which of these has 3 lone pairs of electrons
Hydrochloric Acid, HCl
Which of these properties exist because bonds are extended in all directions throughout the surface?
Ductile, Malleable
Which characteristic of metallic bonds permits copper and silver to conduct electricity and heat?
Electrons move freely out of atomic orbitals across the surface of a metal
Which of these best illustrate coordinate covalent bonds?
PO4, NO3
In hydrogen bonding where do these bonds attach in a electronegative element like fluorine or oxygen
Hydrogen attaches to lone pairs of electrons
Which two substances have london dispersion forces
nonpolar covalent compounds, noble gases
which of these substances have strong dipole-dipole forces between molecules
Polar covalent compounds
