and the Periodic Table

Atoms are the smallest unit of matter. Atoms group together to form molecules, which in turn group together to create solids, liquids, gases, and plasma.

Choose from the selections below to find out more about the parts of an atom and the elements of the periodic table.

parts of an atom

Periodic Table

atomic number and mass number


Chem4Kids Periodic Table

Interactive Periodic Table



back to main index


Questions and comments: