Knowledge required from the ACS exam Study guide
These listed in the guide to the ACS Standardized Exam. Also look over the goals from Chapters 7, 8, 9, 10 to see what you must understand
Knowledge Required:
The symbolic representation of isotopes, with the atomic number of an element written as a left-hand subscript, the mass number written as a left-hand superscript, and the ionic charge (if any) written as a right-hand superscript.
The fact that the mass number is the sum of the number of protons and neutrons.
Knowledge Required:
The general features of Ernest Rutherford's alpha-particle-scattering experiment.
Knowledge Required:
The symbolic representation of electron configuration.
The meaning of the term "valence shell."
The names associated with particular families or periods in the periodic table.
The ability to correlate symbolic representations with locations in the periodic table.
Knowledge Required:
The meaning of the term "photon."
The names associated with regions of the electromagnetic spectrum.
The qualitative knowledge of the
relationships between energy, frequency, and wavelength (
.)
Knowledge Required:
The symbolic representation of electron configuration.
The meaning of the term "second period."
The allowed values for principal and angular momentum quantum numbers.
The order of filling of electron orbitals.
The ability to correlate symbolic representations with positions in the periodic table.
Knowledge Required:
Hund's rule.
The order of filling of electron orbitals.
The ability to correlate symbolic representations with positions in the periodic table.
Knowledge Required:
The nature of quantized energy transfer between energy states.
The relative
spacing of energy levels from n = 1 to n = 
.
The interpretation of energy level changes.
Knowledge Required:
The rules for drawing Lewis structures.
The exceptions to the octet rule.
Knowledge Required:
The interpretation of Lewis structures.
The valence-shell-electron-pair-repulsion (VSEPR) model for predicting molecular shape.
Knowledge Required:
The valence-shell-electron-pair-repulsion (VSEPR) model for predicting molecular shape.
The valence-bond theory for predicting hybridization of orbitals.
Knowledge Required:
Valence-shell-electron-pair-repulsion (VSEPR) model for predicting molecular shape.
Effect of lone pairs on predicted bond angles.
Knowledge Required:
The meaning of resonance structures.
The interpretation of Lewis structures.
Knowledge Required:
The meaning of the terms ionization energy and electron affinity.
The characteristics of different types of chemical bonds.
The relationship between types of chemical bonds and values of ionization energy and electron affinity.
Knowledge Required:
The knowledge of the interaction of photons with covalent bonds.
The interpretation of bond energy data.
Knowledge Required:
The nature of ionic bonding and properties of ionic compounds.
The attributes of solutions of ionic compounds in water.
Knowledge Required:
The relative electronegativity of atoms.
The properties of polar bonds.
The molecular geometry of molecules.
The relationship of dipole moment to molecular geometry.
Knowledge Required:
Geometry of hybrid orbitals.
Number of valence electrons for several atoms.