Outline of Material for Midterm 1
Chem 101, Summer 2006
Karyn Mlodnosky
1. Measurements (Ch.1)
 Units of length, volume, mass and temperature (metric and US)
 Measured vs. exact numbers
 Significant figures in measurement (reading glassware, etc.) and calculations
 Scientific notation
 Precision vs. accuracy
 Metric prefixes in unit conversions
 Write unit conversion factors from given equalities
 Use unit conversions in problem solving
 Density calculations
 Know Table 1.1 and Table 1.5
2. Nuclear Structure and Radiation (Ch. 2.1-2.5 and Ch.3)
 Write element names and symbols from each other
 Determine element from group # and period or from atomic #
 Classify element as metal, nonmetal or metalloid (and know properties)
 Classify element by main group (alkali earth metal, noble gas, etc.)
 Structure of an atom and three subatomic particles
 Atomic # and mass #
 Isotopes and atomic mass
 Types of radiation (alpha, beta, gamma) and their symbols
 Protection from radiation (shielding, intensity drops off with distance (1/D)2)
 Medical applications of radiation (detection vs. treatment; PET)
 Complete nuclear equations
 Half-life calculations
 Know Table 2.2, Table 2.7, Table 3.2 and Table 3.3
3. Electrons, Bonding and Molecular Shape (Ch. 2.6-2.8 and Ch.4.1-4.6, 4.8, 4.9)
 Write electron configurations using periodic table (and vice versa)
 Valence electrons (from group #)
 Electron dot structures for elements, ions, ionic compounds and covalent
compounds
 Ions and octet rule (noble gas configuration)
 Ionic and covalent bonds (and compounds)
 Writing formulas and names for ionic and covalent compounds
 Using valence electrons (group number) to predict the number of covalent bonds
formed by an atom
 Use VSEPR theory to predict molecular shape and bond angles

Be able to draw and name molecular shape of simple covalent molecules
4. Polarity, States of Matter and Phase Changes (Ch. 4.7, 4.10 and 5.1, 5.2, 5.4-5.8)
 Given elelctronegativity values, identify bonds as ionic, polar covalent or
nonpolar covalent
 Predict the direction of the dipole in a polar covalent molecule and label each
atom as partial positive or partial negative
 Identify covalent compounds as overall polar or nonpolar
 Identify physical states and state changes
 Calculate heat changes for changes of state and changes of temperature (know
how to use heat of fusion, heat of vaporization and specific heat)
 Draw heating and cooling curves and be able to interpret them
 Identify attractive forces between molecules and their relationships to melting
and boiling points
 Know Table 5.6, Table 5.8 and Figure 5.8