✋Introduction
Groups of elements in the periodic table
In this lesson: I can identify and describe properties of some different groups of elements in the periodic table. Each column of the periodic table is called a group, and each row is called a period. The periodic table was developed by a Russian scientist called Dimitri Mendeleev.
Lesson outcome
Waxaan aqoonsan karaa oo qeexi karaa astaamaha kooxaha kala duwan ee curiyeyaasha ee jaantuska xilliyeed.