Errata

BC Science Chemistry 11 Errrata
Well, we almost caught everything, but we missed a few things before we went to print. Our goal is to ensure our next printing is as error free as we can make it. In the meantime, we have a errata sheet for you in the file posted on this page.

You'll also notice there are additional changes that have been identified by the community. If you have a change, please feel free to add them to this page. Once we have a few, I'll add them to the main errata file and repost.

Thanks everyone for your continued support. We couldn't do this without you.

Lionel

Other Errata
1. **Page 237**: About half way down in the initial paragraph, the value of the charge/mass ratio for the electron should not have a negative sign in front of it. The discussion is only focussing on charge/mass ratio magnitude. This leads to the next error...

2. Two errors **on page 238**, **Quick Check #1** **(Error A)**: The electron's charge should have the negative sign removed as well or else using the charge/mass ratio that's given (this time correctly WITHOUT the negative sign) will yield a negative mass for the electron. The sign of the electron charge is not relevant to this section. All that's important is the charge magnitude, particularly as it relates to the the hydrogen ion. **(Error B)**: The "8" listed in the value for the electron's charge/mass ratio shoud be a superscript rather than a subscript.

3. **Page 271**: At the end of the first line of text after the Warm Up, the word "atomto" should be changed to the words "atom to",

4. **Page 242** : In the example just above the Sample Problem, the notation for the phophide anion should be a capital letter "**P**" rather than the lower case letter "**p**".

5. **Page 290**: Figure 6.1.2 has Period and Group switched. Periods go across, and Groups go down.

6. **Back cover**: The Periodic Table on the back cover of the book also has Period and Group switched.

Honorable errors do not count as failures in science, but as seeds for progress in the quintessential activity of correction. **//Stephen Jay Gould//**