BSC1005-Activity 2

The Chemistry of life – Define:

Matter

Element

Atom

Atomic Number

Isotope

Ion

Chemical bond

Ionic bond

Hydrogen bond

Complete the following chart regarding atomic structure:

Symbol Element name Protons in nucleus Electrons/ shells # of electrons needed

To be stable

H

C

O

Na

Cl

Ar

Illustrate the following bonds showing the electrons which are involved in bonding the atoms or molecules:

Covalent bond / CH4 Ionic bond / MgCl2 Hydrogen bond / H2O