Content :

Atomic Structure [Gr.8]

 Subatomic particles [Gr.8]
 Formation of ions [Gr.8]
 Formula of common ions [Gr.8]

Content Standards :

 demonstrates understanding of the idea that the identity of a substance is determined by its atomic structure.

Performance Standards :

 interprets food labels in terms of amount of ions present in relation to the required daily mineral intake.

Learning Competencies :

 names and describe the subatomic particles.
 determines the number of protons, neutrons, and electrons in an atom.
 recognizes that an element is identified by the number of protons in the nucleus.
 explains how ions are formed.
 determines the number of protons, neutrons, and electrons.
 writes the formula of common ions.