Minds On - Chemical Bonding and Molecular Shape
The Chemical Bonding and Molecular Shape Minds-On module consists of various missions (assignments) that address such topics as Chemical Bonding and Molecular Shape. The missions and the corresponding objectives are listed below. Tap a mission's name to begin.
Activities
Mission CB1 pertains to the nature of a bond; the distinction between nonpolar covalent, polar covalent, and ionic bonds; and the effect that the electronegativity values of bonded elements have on these bond types. The mission consists of 36 questions organized into 9 Question Groups.
Mission CB2 pertains to ion formation and ionic bonding. Students must predict how main group metals and nonmetals gain and lose electrons to obtain stable octets and how the ions formed from the process attract to form an ionic bond. The mission consists of 40 questions organized into 10 Question Groups.
Mission CB3 pertains to the ratio of cations and anions in ionic compounds. Students must be familiar with electron dot models for elements and use and electron transfer model to explain the ion ratios. The mission consists of 36 questions organized into 9 Question Groups.
Mission CB4 pertains to the sharing of electrons among atoms to form covalent bonds. Students will need to know how to use the octet rule to predict the number of bonds formed for Group 2 elements. The mission consists of 24 questions organized into 6 Question Groups.
Mission CB5 pertains to the polarity of a covalent bond. Students must know fundamental concepts regarding the factors affecting the direction and magnitude of the bond dipole and apply the concepts to specific bonds. The mission consists of 32 questions organized into 8 Question Groups.
Mission CB6 pertains to Lewis electron dot diagrams with a focus on molecules with no multiple bonds which do not break the octet or duet rule. The mission consists of 32 questions organized into 8 Question Groups.
Mission CB7 pertains to Lewis diagrams for double and triple bonds. Scenarios are restricted to situations in which the octet rule is satisfied. The mission consists of 28 questions organized into 7 Question Groups.
Mission CB8 pertains to situations in which an atom exceeds the octet rule. Students must be familiar with why it occurs and when it cannot occur and be able to recognize common cases of octet breakers. The mission consists of 28 questions organized into 7 Question Groups.
Mission CB9 pertains to VSEPR theory; the emphasis is on understanding the foundational principles and using them to predict electron pair geometries and bond angles for molecules with four or less electron pairs. The mission consists of 32 questions organized into 8 Question Groups.
Mission CB10 requires that students use VSEPR to determine the molecular shape of molecules that may or may not have a lone pair on the central atom. The mission consists of 36 questions organized into 9 Question Groups.
Mission CB11 requires that students identify the electron pair geometry and molecular shape from a given Lewis electron dot structure. Most structures include expanded octets. The mission consists of 36 questions organized into 11 Question Groups.