ACS Chemistry General Exam 7th
Edition by Raymond Chang
List the electron domain geometry & molecular geometry of a molecule with 4 electron
domains (2 bonding 2 nonbonding) - Answers-electron domain geometry: tetrahedral
molecular geometry: bent/nonlinear
ex: H2O
List the electron domain geometry & molecular geometry of a molecule with 5 electron
domains (5 bonding 0 nonbonding) - Answers-electron domain geometry: trigonal
bipyramidal
molecular geometry: trigonal bipyramidal
ex: PCl5
List the electron domain geometry & molecular geometry of a molecule with 6 electron
domains (6 bonding 0 nonbonding) - Answers-electron domain geometry: octahedral
molecular geometry: octahedral
ex: SF6
List the electron domain geometry & molecular geometry of a molecule with 6 electron
domains (5 bonding 1 nonbonding) - Answers-electron domain geometry: octahedral
molecular geometry: square pyramidal
ex: BrF5
List the electron domain geometry & molecular geometry of a molecule with 5 electron
domains (2 bonding 3 nonbonding) - Answers-electron domain geometry: trigonal
bipyramidal
molecular geometry: linear
ex: I3-
What particle, if lost from the nucleus, would NOT cause a change in the atomic
number? - Answers-a neutron because it has no charge
When alpha particles were shot at a metal foil target, most passed through without
deflections, while others deflected at large angles. What did this suggest to Rutherford?
- Answers-that the atoms of the metal were mostly empty space, while the nucleus
consisted of most of the mass which included highly condensed positive particles (which
caused the deflection).
An atom has a valence shell configuration of 1s1. To which group of elements on the
periodic table does it belong? - Answers-IA
alkali metals
electromagnetic spectrum - Answers-
, The greater the wavelength of a photon..? - Answers-the lower its frequency
The greater the frequency of a photon...? - Answers-the shorter its wavelength
Light energy formula - Answers-
What does C in the light energy formula represent? - Answers-
Give the ground-state electron configuration of an atom in the second period - Answers-
1s2 2s1
Electrons configuration rule that states electrons do not pair until they have to. (put one
electrons in each electron domain then pair up) - Answers-Hund's rule
An experimental phenomena associated with atoms having unpaired electrons - which
states such substances are attracted to magnetic fields - Answers-Paramagnetism
Which drop in energy level results in the greatest emission of energy? - Answers-n=2 to
n=1
quantum numbers - Answers-
What do the 4 quantum numbers stand for? - Answers-n = energy level
l = (n-1)
ml -l to l
mn 1/2 or -1/2 (spin)
List the quantum numbers for the s, p, d, and f orbitals - Answers-s 1,0,0
p 2, 1, -1-0-1
d 3, 2, -2--1-0-1-2
f 4, 3 -3--2--1-0-1-2-3
Py orbital - Answers-
Which element is represented by X - Answers-Chromium
What two subatomic particles have the most mass, but occupy very little of the volume
of an atom - Answers-protons and neutrons
Define Isoelectronic - Answers-Having the same amount of electrons
How does a sodium ion differ from a sodium atom? - Answers-the sodium ion has fewer
electrons
Layout of an element (mass # & atomic #) - Answers-
Edition by Raymond Chang
List the electron domain geometry & molecular geometry of a molecule with 4 electron
domains (2 bonding 2 nonbonding) - Answers-electron domain geometry: tetrahedral
molecular geometry: bent/nonlinear
ex: H2O
List the electron domain geometry & molecular geometry of a molecule with 5 electron
domains (5 bonding 0 nonbonding) - Answers-electron domain geometry: trigonal
bipyramidal
molecular geometry: trigonal bipyramidal
ex: PCl5
List the electron domain geometry & molecular geometry of a molecule with 6 electron
domains (6 bonding 0 nonbonding) - Answers-electron domain geometry: octahedral
molecular geometry: octahedral
ex: SF6
List the electron domain geometry & molecular geometry of a molecule with 6 electron
domains (5 bonding 1 nonbonding) - Answers-electron domain geometry: octahedral
molecular geometry: square pyramidal
ex: BrF5
List the electron domain geometry & molecular geometry of a molecule with 5 electron
domains (2 bonding 3 nonbonding) - Answers-electron domain geometry: trigonal
bipyramidal
molecular geometry: linear
ex: I3-
What particle, if lost from the nucleus, would NOT cause a change in the atomic
number? - Answers-a neutron because it has no charge
When alpha particles were shot at a metal foil target, most passed through without
deflections, while others deflected at large angles. What did this suggest to Rutherford?
- Answers-that the atoms of the metal were mostly empty space, while the nucleus
consisted of most of the mass which included highly condensed positive particles (which
caused the deflection).
An atom has a valence shell configuration of 1s1. To which group of elements on the
periodic table does it belong? - Answers-IA
alkali metals
electromagnetic spectrum - Answers-
, The greater the wavelength of a photon..? - Answers-the lower its frequency
The greater the frequency of a photon...? - Answers-the shorter its wavelength
Light energy formula - Answers-
What does C in the light energy formula represent? - Answers-
Give the ground-state electron configuration of an atom in the second period - Answers-
1s2 2s1
Electrons configuration rule that states electrons do not pair until they have to. (put one
electrons in each electron domain then pair up) - Answers-Hund's rule
An experimental phenomena associated with atoms having unpaired electrons - which
states such substances are attracted to magnetic fields - Answers-Paramagnetism
Which drop in energy level results in the greatest emission of energy? - Answers-n=2 to
n=1
quantum numbers - Answers-
What do the 4 quantum numbers stand for? - Answers-n = energy level
l = (n-1)
ml -l to l
mn 1/2 or -1/2 (spin)
List the quantum numbers for the s, p, d, and f orbitals - Answers-s 1,0,0
p 2, 1, -1-0-1
d 3, 2, -2--1-0-1-2
f 4, 3 -3--2--1-0-1-2-3
Py orbital - Answers-
Which element is represented by X - Answers-Chromium
What two subatomic particles have the most mass, but occupy very little of the volume
of an atom - Answers-protons and neutrons
Define Isoelectronic - Answers-Having the same amount of electrons
How does a sodium ion differ from a sodium atom? - Answers-the sodium ion has fewer
electrons
Layout of an element (mass # & atomic #) - Answers-
