CHEMISTRY  SSS1 Second Term

WEEK 1

Chemical combination

Performance Objectives

The student should be able to:

1. List the first twenty elements and their electronic configuration
2. Explain electrovalent bond with examples
3. Explain covalent bond with examples
4. Explain metallic bonds with examples
5. explain coordinate covalent bond with examples

Content

Electronic configuration

The electron configuration of an atom is the representation of the arrangement of electrons distributed among the orbital shells and subshells. Commonly, the electron configuration is used to describe the orbitals of an atom in its ground state, but it can also be used to represent an atom that has ionized into a cation or anion by compensating with the loss of or gain of electrons in their subsequent orbitals. Many of the physical and chemical properties of elements can be correlated to their unique electron configurations. The valence.... View More