Students read brief descriptions of atoms, molecules, elements, and compounds, and complete a matching exercise that pictures these particles and molecules as pieces of taffy.
In this interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.
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In this interactive learning object, students answer multiple choice questions about medications, nursing implications, and client outcomes of gastrointestinal management. A correct answer gives the learner a square on a Tic-Tac-Toe board. The student may play against the computer or with one other person.