The Atom and how it is organized

The atoms of all elements are made up of a central nucleus with orbiting electrons.

◦ A nucleus is made up of positively charged PROTONS and neutral NEUTRONS.

◦ ELECTRONS are negatively charged and orbit around the nucleus.

Structure of an Atom

Structure of an Atom

In order to organize elements we need to classify them.

To classify and name an element we look at the number of PROTONS that the atom has.

The number of PROTONS defines the element

Organizing Atoms

To organize the elements we use the PERIODIC TABLE. The periodic table organized elements in the order of the number of protons each atom contains

The Periodic Table

The Periodic Table

How the table is actually organized

The Periodic Table

The Periodic Table

In each box of the periodic table there is information about the element

Understanding the Periodic Table

BBoron

5 Atomic Number(The number of Protons)

Element symbol

Name of Element