Chapter 7 - Periodic Trends

Remember: Trends are an observation, not an explanation. Trends can NEVER be used to explain WHY.

Some of these questions require you to type in short explanations. The computer will mark your answer wrong if you do not word it the exact way I did (which is difficult) so just make sure that your answer is the same as mine, and don't worry about whether the computer tells you it's right or wrong.