Metals and their Compounds 3

CHEMISTRY SSS3 First term

WEEK 3

Metals and their Compounds 3

Performance objectives

Students should be able to:

1. State the properties of transition metals
2. Explain the extraction of tin.
3. Give at least three uses of tin.

Content

Transition metals

Transition metal, any of various chemical elements that have valence electrons—i.e., electrons that can participate in the formation of chemical bonds—in two shells instead of only one. While the term transition has no particular chemical significance, it is a convenient name by which to distinguish the similarity of the atomic structures and resulting properties of the elements so designated. They occupy the middle portions of the long periods of the periodic table of elements between the groups on the left-hand…