UCF CHM 2045 EXAM 3 (PASSED
100%!!)
, UCF CHM 2045 EXAM 3 (PASSED
100%!!)
SI unit for wavelength - CORRECT ANSWERSmeters
de broglie relationship for a single particle - CORRECT ANSWERSλ = h/mv
Heisenberg's Uncertainty Principle: Relationship between a particle's uncertainty in postion and
uncertainty in velocity - CORRECT ANSWERSΔx * mΔv ≥ h / 4π
Energy of an orbital with quantum number n in a hydrogen atom - CORRECT ANSWERSE(n) = -2.18*10^-
18 Joules (1/(n)^2)
Energy that occurs in an atom during a transition between orbitals - CORRECT ANSWERSΔE = -2.18*10^-
18 Joules Δ(1/(n)^2)
indeterminacy - CORRECT ANSWERSthe inability to know both the position and velocity of an electron at
the same time
In the Lewis model - CORRECT ANSWERSvalence electrons are represented as dots, and we draw Lewis
electron-dot structures
metallic bonding - CORRECT ANSWERSIn the simplest model for metallic bonding—called the electron
sea model—all of the atoms in a metal lattice pool their valence electrons. These pooled electrons are
no longer localized on a single atom, but delocalized over the entire metal. The positively charged metal
atoms are then attracted to the sea of electrons, holding the metal together.
Lewis symbol - CORRECT ANSWERSrepresent the valence electrons of main-group elements as dots
surrounding the element symbol
100%!!)
, UCF CHM 2045 EXAM 3 (PASSED
100%!!)
SI unit for wavelength - CORRECT ANSWERSmeters
de broglie relationship for a single particle - CORRECT ANSWERSλ = h/mv
Heisenberg's Uncertainty Principle: Relationship between a particle's uncertainty in postion and
uncertainty in velocity - CORRECT ANSWERSΔx * mΔv ≥ h / 4π
Energy of an orbital with quantum number n in a hydrogen atom - CORRECT ANSWERSE(n) = -2.18*10^-
18 Joules (1/(n)^2)
Energy that occurs in an atom during a transition between orbitals - CORRECT ANSWERSΔE = -2.18*10^-
18 Joules Δ(1/(n)^2)
indeterminacy - CORRECT ANSWERSthe inability to know both the position and velocity of an electron at
the same time
In the Lewis model - CORRECT ANSWERSvalence electrons are represented as dots, and we draw Lewis
electron-dot structures
metallic bonding - CORRECT ANSWERSIn the simplest model for metallic bonding—called the electron
sea model—all of the atoms in a metal lattice pool their valence electrons. These pooled electrons are
no longer localized on a single atom, but delocalized over the entire metal. The positively charged metal
atoms are then attracted to the sea of electrons, holding the metal together.
Lewis symbol - CORRECT ANSWERSrepresent the valence electrons of main-group elements as dots
surrounding the element symbol
