Chemistry Brooks HOMEWORK

TOMORROW: BRING CALCULATOR. You Do Not Need Your Book Tomorrow: We are doing a LAB
NEXT TUESDAY we go to Mrs. Kennedy's Classroom: YOU WILL NEED YOUR BOOK Room #210 Freshman Building


STUDENTS Add these to your notes!!!!!!!!!!! 
Remember on the Periodic Table:
-Metal, Positive Ion (IN BLACK, to the left)
-Non Metal,  Negative Ion (IN RED, to the right)

HOMEWORK: DUE FRIDAY!!!!!!
1. Finish and Turn in Elements Worksheet
2. Finish and Turn in Chapter 4 Review
3. Finish Worksheet finding the Atomic Mass #1-3 (see picture below)

FINDING THE ATOMIC MASS:
This will help you with your homework and tomorrow with the lab. You must finish the worksheet with the dot in the top left corner. #1-3

STEPS: Finding Atomic Mass 

1.     Get rid of percent signs (relative abundance)

a.     Move decimal point two places to the left (or you can divide # by 100)

2.     To find the Percent of Isotopes:

a.     Multiply the actual mass by the relative abundance

3.     To find the Atomic Mass:

a.     Add all the percent of isotopes