CHEM 1A03 Lecture Notes - Lecture 5: Electron Affinity, Rubidium, Sulfur Dioxide

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1A03
• Professor: Linda Davis

Document Summary

Covers unit 2 (6), unit 3 (7), unit 4 (7) only. First 2 and last 2 pages are posted on a2l. Alkaline metals with water (down a group: as you go down a group, ie decreases. Cant see much difference between lithium and sodium but when you get to potassium you see it emit a lot of energy and really oxidize. Silicon atoms in their ground state are paramagnetic: true. As soon as you have one unpaired electron in an orbital, it is paramagnetic regardless of how many other orbitals are paired. Rubidium is more easily ionized than potassium: true. Bromine has a lower electron affinity than chlorine: true. Chlorine electrons are closer to nucleus and thus has a stronger attractive force. When dissolved in water, sulfur dioxide is more acidic than potassium oxide: true. Non-metals become acidic in water, metals become basic. Aluminum is more electronegative than sodium: true.