CHEM 121 Study Guide - Midterm Guide: Movember, Wave Function, Periodic Trends

• School: UBC
• Department: Chemistry
• Course: CHEM 121
• Professor: All

Document Summary

For each numbered statement below, circle the letter that corresponds to the best answer. There is only one correct answer per question. 6 marks: for this question, consider only the following elements as possible answers: For each part, give the symbol from the above list that makes the statement correct. Al, si, p, s, cl, ar (a) (b) (c) (d) __ p____ exists as an allotrope with only one lone pair per atom. __ p___ exists as an allotrope that ignites spontaneously in dry air. (e) ___s___ commonly has an oxidation state of +2, +4, or +6 in compounds: complete and balance the following reactions (assume sufficient heat is present to give a reaction no reaction is not an acceptable answer): _2__ h2s + ___ so2 3s + 2 marks: silicon, germanium, and the grey allotrope of tin all have the same crystalline.