Structure of the Atom

Syllabus tag: Kenya CBC | Grade 9 Integrated Science | Strand 1.0 Mixtures, Elements and Compounds | Sub-Strand 1.1 Structure of the Atom (14 Lessons)

Lesson objectives

By the end of this sub-strand, you should be able to:

• Describe the structure of the atom and the sub-atomic particles it contains.
• Work out the mass number and atomic number of an element.
• Write the electron arrangement of the first twenty elements.
• Relate electron arrangement to the position of an element in the periodic table.