ACS EXAM review
QUESTIONS AND VERIFIED
CORRECT ANSWERS
GRADED A+ LATEST UPDATE
100% GUARANTEED PASS
higher photon energy - CORRECT ANSWER-higher frequencies (∨) and shorter wavelengths (λ)
speed of light (c) - CORRECT ANSWER-3.00 x 10⁸ ms⁻¹, maximum speed of any and all motion;
electromagnetic waves travel at this speed
principal quantum number (n) - CORRECT ANSWER-a positive integer (1,2,3,etc.) that indicates
the relative size of the orbital and therefore the relative distance from the nucleus of the peak
in the radial probability distribution plot. The higher the n value, the higher the energy level.
angular momentum quantum number (l) - CORRECT ANSWER-an integer from 0 to n-1. It is
related to the shape of the orbital. (notice that n limits l) (the possible number of l values equals
the number of n)
,quantum number (ml) - CORRECT ANSWER-an integer from -l through 0 to +l. It prescribes the
orientation of the orbital in the space around the nucleus. (number of possible ml= 2l+1)
quantum number (ms) - CORRECT ANSWER-direction of spin (+1/2 or -1/2)
hund's rule - CORRECT ANSWER-electrons in orbitals of the same energy do not pair until they
have to
atomic line spectra - CORRECT ANSWER-(further explanation) provide evidence that the energy
state of an electron in an atom is quantized
absorbed - CORRECT ANSWER-energy must be ______ for an electron to move from one energy
state in an atom to another energy state that is more remote from the nucleus
emitted - CORRECT ANSWER-energy must be _____ for an electron to move from one energy
state in an atom to another energy state that is closer to the nucleus
paramagnetism - CORRECT ANSWER-exhibited by a species with unpaired electrons
diamagnetism - CORRECT ANSWER-exhibited by a species with all electrons paired
allotrope - CORRECT ANSWER-a structurally different form of an element; graphite and a
diamond have the same formula but different structure to the atoms
isomer - CORRECT ANSWER-compounds that have the same simple formula but different three-
dimensional structures
, polymer - CORRECT ANSWER-large compound formed from combinations of many monomers
s sublevel - CORRECT ANSWER-l=0 (spherical)
p sublevel - CORRECT ANSWER-l=1 (dumbbell shape)
d sublevel - CORRECT ANSWER-l=2 (clover shape/dumbbell and do-nut)
f sublevel - CORRECT ANSWER-l=3
diffraction by crystals - CORRECT ANSWER-...
Valence Electron Pair Repulsion (VSPER) Theory - CORRECT ANSWER-each group of valence
electrons around a central atom is located as far away as possible from others in order to
minimize repulsion
dipole moment - CORRECT ANSWER-...
Valence bond theory - CORRECT ANSWER-...
hybrid orbitals - CORRECT ANSWER-...
molecular orbital theory - CORRECT ANSWER-...
ionization energy - CORRECT ANSWER-energy required for the complete removal of 1 mol of
electrons from 1 mol of gaseous atoms or ions (increases across a period, decreases down a
group)
QUESTIONS AND VERIFIED
CORRECT ANSWERS
GRADED A+ LATEST UPDATE
100% GUARANTEED PASS
higher photon energy - CORRECT ANSWER-higher frequencies (∨) and shorter wavelengths (λ)
speed of light (c) - CORRECT ANSWER-3.00 x 10⁸ ms⁻¹, maximum speed of any and all motion;
electromagnetic waves travel at this speed
principal quantum number (n) - CORRECT ANSWER-a positive integer (1,2,3,etc.) that indicates
the relative size of the orbital and therefore the relative distance from the nucleus of the peak
in the radial probability distribution plot. The higher the n value, the higher the energy level.
angular momentum quantum number (l) - CORRECT ANSWER-an integer from 0 to n-1. It is
related to the shape of the orbital. (notice that n limits l) (the possible number of l values equals
the number of n)
,quantum number (ml) - CORRECT ANSWER-an integer from -l through 0 to +l. It prescribes the
orientation of the orbital in the space around the nucleus. (number of possible ml= 2l+1)
quantum number (ms) - CORRECT ANSWER-direction of spin (+1/2 or -1/2)
hund's rule - CORRECT ANSWER-electrons in orbitals of the same energy do not pair until they
have to
atomic line spectra - CORRECT ANSWER-(further explanation) provide evidence that the energy
state of an electron in an atom is quantized
absorbed - CORRECT ANSWER-energy must be ______ for an electron to move from one energy
state in an atom to another energy state that is more remote from the nucleus
emitted - CORRECT ANSWER-energy must be _____ for an electron to move from one energy
state in an atom to another energy state that is closer to the nucleus
paramagnetism - CORRECT ANSWER-exhibited by a species with unpaired electrons
diamagnetism - CORRECT ANSWER-exhibited by a species with all electrons paired
allotrope - CORRECT ANSWER-a structurally different form of an element; graphite and a
diamond have the same formula but different structure to the atoms
isomer - CORRECT ANSWER-compounds that have the same simple formula but different three-
dimensional structures
, polymer - CORRECT ANSWER-large compound formed from combinations of many monomers
s sublevel - CORRECT ANSWER-l=0 (spherical)
p sublevel - CORRECT ANSWER-l=1 (dumbbell shape)
d sublevel - CORRECT ANSWER-l=2 (clover shape/dumbbell and do-nut)
f sublevel - CORRECT ANSWER-l=3
diffraction by crystals - CORRECT ANSWER-...
Valence Electron Pair Repulsion (VSPER) Theory - CORRECT ANSWER-each group of valence
electrons around a central atom is located as far away as possible from others in order to
minimize repulsion
dipole moment - CORRECT ANSWER-...
Valence bond theory - CORRECT ANSWER-...
hybrid orbitals - CORRECT ANSWER-...
molecular orbital theory - CORRECT ANSWER-...
ionization energy - CORRECT ANSWER-energy required for the complete removal of 1 mol of
electrons from 1 mol of gaseous atoms or ions (increases across a period, decreases down a
group)
