CHAPTER 1- PERIODIC TABLE
AND ELECTRONIC CONFIGURATION

SIGNIFICANT LEARNING OUTCOMES OF THE TOPIC

• The learner identifies that electrons in an atom are arranged in the various shells around the nucleus and that each shell has subshells.
• The learner identifies that shells have subshells which differ in their energy levels and writes the subshell electronic configuration of the elements.
• The learner identifies the group, period and block of elements based on filling of electrons in subshells and writes them down.
• The learner identifies the characteristics of s,p,d and f block elements and lists them.