Atomic Structure, Periodic Table, Chemical Bonds, Chemical Formulas Worksheet Page 22
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2516B
Chemical Formulas
Investigation
B
Stop and think
a. How are elements grouped according to the number of valence electrons in their
outermost levels?
b. Why do elements in group 2 have an oxidation number of 2+?
Why do elements in group 17 have an oxidation number of 1–?
c.
d. Why do the oxidation numbers in the first two groups tend to be positive?
C
Predicting chemical formulas
A binary compound is composed of two different elements. Predict the chemical formulas for
the binary compounds that are made up of the pairs of elements in the table below. Use the
following steps:
1. Using the periodic table on the previous page, determine the ion formed by each
element.
2. Figure out how many periodic table tiles of each element will be needed to make the
compound electrically neutral.
2
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education