Content :

Periodic Table of Elements [Gr.8]

 Development of the PT [Gr.8]
 Arrangement of elements [Gr.8]
 Reactive and nonreactive metals [Gr.8]

Content Standards :

demonstrates understanding of the periodic table as an organizing tool to determine the chemical properties of elements. These chemical properties of elements depend on the outermost electrons in the atom.
 demonstrates understanding of grouping elements as highly reactive metals, less reactive metals, highly nonreactive nonmetals and nonreactive gases.

Learning Competencies :

 traces the development of the periodic table from observations based on similarities in properties of elements.
 describes the arrangement of the elements in the periodic table.
 gathers information about the elements from the periodic table.
 uses the periodic table to predict the chemical behavior of an element.
 describes and groups elements as:
– highly reactive metals
– less reactive metals
– highly reactive nonmetals – nonreactive gases
 appreciates the importance of knowing the properties of elements in:
– the human body
– technology
– environment