Learning+Log

=Learning Log Entry Prompts =

**Learning Log #1**: Summarize the reaction of sodium and sodium chloride to water. How and why were they different?

**Learning Log #2**: In one sentence, what is ionic bonding? Next, describe how an ionic bond forms. Include key words: valence electrons, ionization energy, cation, anion, positive/negative charge and octet rule.

**Learning Log #3: Why does the compound have a chemical formula NaCl and not Na2Cl ? Why is it [possible or not possible] to have a compound, Na2Cl? Include key word: oxidation number (charge) **

**Learning Log #4:** How does the chemical formula Na2O show the number of atoms for sodium and oxide? What is the difference between Mg2O and (Mg2O)2 in terms of number of atoms?

**Learning Log #5:** What is an ionic compound? What is a covalent compound? List at least two differences between ionic and covalent bonding. Explain why Ionic compounds are conductive while covalent compounds are not conductive.

**Learning Log #6:** Why does a metal atom, like magnesium, transfer valence electrons to a non metal atom to form a compound? Why does two non-metal atoms share valence electrons to form a compound?

**Learning Log #7:** What is an element and a compound? Use key word: __atoms__ Next, describe, draw and give examples of the difference between a compound and a molecule. Can an ionic compound ever be a molecule?