Unit 1: Atomic Structure and Properties.
1.1 Moles and Molar Mass.
Apply Avogadro’s number to calculate the number of moles given the
number of particles (atoms, molecules, formula units, ions) in a substance and vice versa.
Understand that the mass of a single atom in amu is numerically equalivant to the mass of
a mole of that substance in grams.
Use molar mass to convert between mass and moles of a substance.
Use subscripts to convert between molecules and the number of atoms of a
given element.
1.2 Mass Spectra of Elements.
Identify an element given its mass spectrum.
Calculate the average atomic mass of an element given its mass spectrum.
1.3 Elemental Composition of Pure Substances.
Determine the empirical formula of a compound given data.
Apply the Law of Definite Proportions to determine the ratio of atoms in
a compound when given mass amounts.
Determine the measurements/steps needed to determine the formula of a compound in the lab (gravimetric analysis).
1.4 Composition of Mixtures.
Compare and contrast pure substances and mixtures.
Perform calculations to determine the formula and/or purity of a compound by calculating/comparing relative amounts.
1.5 Atomic Structure and Electron Configuration.
Identify the location of subatomic particles and the charge of areas of the atom.
Qualitatively apply Coulomb’s law and effective nuclear charge to justify differences in attractive force between nucleus and core vs. valence electrons.
Write the electron configuration for an atom or ion.
Determine the number of unpaired electrons in an atom.
Differentiate electronic structure in terms of shells and subshells.
Qualitatively apply Coulomb’s law to discuss differences in ionization energy by comparing electron shells/subshells between atoms.
1.6 Photoelectron Spectroscopy.
Identify an element based on its PES (Photoelectron Spectroscopy).
Label the peaks on a PES spectrum with the corresponding subshell.
Compare heights of peaks in the spectrum to determine the number of electrons in a subshell.
Explain differences between PES spectra of two atoms/ions.
1.7 Periodic Trends.
Apply Coulomb’s Law and atomic structure features to compare atomic properties between two elements.
Use periodicity to predict or estimate values of properties of elements.
1.8 Valence Electrons and Ionic Compounds.
Predict the type of bond that will form between two atoms based on their valence electrons.
Choose a compound with similar properties to a given compound based on periodicity.
Predict the charge on an atom by its location on the periodic table.