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Periodic Table and the Elements

Get facts for the elements. You'll find information about the chemical and physical properties of all of the elements, periodic tables, element games & quizzes, tables of data, and element articles.
  1. Alchemical Symbols (17)
  2. Element Facts (492)
  3. Element Groups (67)
  4. Elements (898)
  5. Games & Quizzes (116)
  6. Periodic Tables (48)
  7. Periodicity & Trends (10)

Periodic Table of the Elements
This is your go-to online periodic table of the elements. Click on an element's symbol to get facts about its discovery, word origin, isotopes, properties, uses, and sources.

10 Periodic Table Facts
The periodic table organizes the elements according to their periodic properties. Find 10 periodic table facts that are interesting and informative.

Printable Periodic Table of the Elements
Download or print these periodic tables to help work chemistry problems or to predict properties of the elements.

Element List
Here's a list of chemical elements ordered by increasing atomic number. The names and element symbols are provided.

What Are Elements?
What are elements? The chemical elements are central to the study of chemistry and other science. This is the definition of elements and an introduction to the elements.

What Was the First Known Element?
Some of the chemical elements were known to ancient man. Can you name them?

Periodic Table of the Elements - Element Pictures
The purpose of this periodic table of the elements is to show you what each of the elements looks like. Click on an element symbol to see a picture of the element.

Periodic Table Study Guide
Learn about the periodic table of the elements. Find out about the history of the periodic table, how the elements are organized, and how to use the periodic table to predict the behavior of unfamiliar elements.

Metal Crystals Photo Gallery
Did you know metals could grow as crystals? Some of these crystals are exceedingly beautiful and some can be grown at home or in a standard chemistry lab. This is a collection of photos of metal crystals, with links to instructions for growing metal crystals.

Javascript Periodic Table of the Elements
This is an interactive javascript periodic table of the elements. Click on an symbol on the periodic table to get facts about the element.

Alphabetical List of Elements
Here's a list of the elements, in alphabetical order according to their IUPAC names.

Periodic Table of the Elements for Kids
This table was made with kids and homework in mind. It includes element groups and periods, element symbols, atomic numbers, atomic weights, and links to detailed facts for each element.

Atomic Weights of the Elements
This is the list of the atomic weights of the elements (2007 IUPAC-accepted values). Elements are listed in order of increasing atomic number.

Printable Periodic Table of the Elements - Natural State
This printable periodic table contains the element's atomic number, symbol and state of matter at standard conditions, or its natural state. Solids are further categorized by their most common crystalline structure.

Free Periodic Table of the Elements
This is a public domain periodic table of the elements that you can freely use and print.

Mendeleev's Periodic Table of the Elements
This is the English translation of Dmitri Mendeleev's periodic table of the elements.

Mendeleev's Periodic Table of the Elements
See what Dmitri Mendeleev's original periodic table of the elements looked like. Blank spaces predict the existence of elements that hadn't been discovered.

Introduction to the Periodic Table
Learn how the periodic table of the elements is structured. Get basic history about its development and learn how periods and groups relate to electrons and atomic mass.

Element Photos
You probably know what elemental carbon looks like (think diamond or graphite), but you might not know what indium or cadmium look like. Here's an index of photographs of the elements to help you out. Ores are included.

Element of the Week E-Course
Learn about the elements! When you sign up you'll get one e-course newsletter a week until you've gotten them all. You'll get facts about the elements and related information about element uses and their impact on our lives.

Element Symbols Not in Use
This is a list of element symbols and names that are placeholders for final names or else are no longer in use.

Alchemy Symbols
See the alchemical symbols for the chemical elements.

Elements in the Human Body
Find out what elements are in the human body and what these elements do.

Basic Model of the Atom
Are you confused about atoms, elements, protons, neutrons, electrons, isotopes, and ions? Here's a basic look at the model of the atom. It's a great overview for kids or anyone looking to grasp the essentials of atomic theory.

Actinide Properties
The actinides share common properties, distinct from other rare earth elements.

Alkali Metal Properties
Learn about the common properties shared by the alkali metals.

Alkaline Earth Properties
The alkaline earths possess the properties shared by all metals, but they have characteristics common to their own group as well.

Element Atomic Number Quiz
The atomic number of an element is the same as its number of protons. The atomic number determines an element's order in the periodic table. Do you know the numbers of the first few elements? Here's your chance to test yourself, while learning some facts about the elements, too.

Element Color Quiz
Do you know the colors of the chemical elements? Here's a fun multiple choice quiz designed to test your knowledge.

Element Symbols
It's easier to navigate the periodic table and write chemical equations and formulae once you know the symbols for the elements. Here's an alphabetical list of element symbols with corresponding element names.

Element Mnemonic Device
Here's a handy mnemonic device to help memorize the symbols and sequence of the first nine elements in the periodic table.

Elements Listed by Density
See the order of the chemical elements according to their density (mass per unit volume), from least dense to most dense.

Elements Named for People - Element Eponyms
Alphabetical list of the chemical elements named after people.

Elements Named for Places - Element Toponyms
Alphabetical list of elements in chemistry named for places or element toponyms.

Element Names Spelling Quiz
It's easy to understand how people get confused over the spelling of element names like sulfur, which the IUPAC changed from sulphur (a common spelling still used in some countries). Other element names are just harder to spell. Do you know them all?

Firework Periodic Table
Use this special periodic table to find out what elements are found in fireworks and how they are used. Just click on an element to learn more.

Groups of Elements - Periodic Table
Elements can be categorized according to their similar properties. Here's a periodic table that organizes the elements according to groups. Click an element symbol and learn about the group to which it belongs.

Halogen Properties
The halogens are a specific group of nonmetals with some distinctive properties.

How Are Elements Named?
Have you ever wondered how the elements are named or why some elements have more than one name? Here's the answer to your question.

How Are New Elements Discovered?
Find out if there are any elements left to be discovered and how they would be found.

Increasing Atomic Number Doesn't Always Increase Atomic Mass
Learn why sometimes increasing the atomic number of an element doesn't necessarily increase its atomic mass.

Ions, Isotopes, Atoms Quiz
If you're given the nuclear symbol for an element, can you identify how many protons and neutrons it has? If you see an ion symbol, do you know how many electrons are present? Here's your chance to test yourself.

Lanthanide Properties
Learn about the characteristics of the lanthanide series, one of the rare earth groups.

Liquid Elements
There are six chemical elements that can be liquids at normal temperatures and pressures. Can you name them?

Metal Properties
Most of the chemical elements are metals of one variety or another. Learn about some of the properties common to this large element group.

Metalloid or Semimetal Properties
The metalloids or semimetals share some of the properties of metals and some of the properties of nonmentals.

Nitrogen Cycle
Learn about the processes involved in the nitrogen cycle, the biochemical cycle that describes the transformations of nitrogen as it goes through nature.

Noble Gas Properties
Get information about the properties shared by the noble or inert gases.

Nonmetal Properties
Get information about the common characteristics of the nonmetals.

Are There Any Undiscovered Elements?
Have you ever wondered if there are any undiscovered elements or how scientists find new elements? Here's the answer.

Periodic Table Trends - Periodic Table Quiz
Do you understand the trends of periodic table periodicity? Here's a ten question multiple choice quiz you can take to test your knowledge.

Periodic Tables
Download and print a periodic table or take a look at other types of periodic tables, including Mendeleev's original periodic table of the elements.

Rare Earth Properties
Learn about the common properties of the rare earths, which include the lanthanide and actinide series of elements.

Timeline of Element Discovery
Use this table to look up the date an element was discovered and the name(s) of its discoverer. Links to additional element facts are provided, too.

Toxic Elements
Here's a list of elements that are toxic or poisonous and have no known nutritional value.

Transition Metal Properties
Get facts about the transition elements.

What Are the Elements in the Human Body?
Do you know the chemical composition of the human body? Here's the list of elements, given in percentage according to weight.

Element Families
Elements may be categorized according to element families. This is an explanation of element families, with descriptions of each one.

What Is a Chemical Element?
Get the definition for a chemical element.

What Is the Most Abundant Element?
The elemental composition of the universe and the earth's crust are very different! How different? Take a look...

Which Element Are You?
Which chemical element are you? Technically speaking, you mostly consist of carbon, hydrogen, and oxygen, but which element best represents your personality? Take this fun multiple choice quiz to find out.

What's Your Element?
What's your element? I have a quiz that helps you to identify which element best matches your personality, but I bet you can identify with an element without looking. What's your favorite element? If you were an element, which element would you be?

Metals and Nonmetals
Elements may be classified as either metals or nonmetals, based on their properties. Here's a look at the differences between the metals and nonmetals.

Photographic Periodic Table of the Elements
This photographic periodic table of the elements includes thumbnails to show pictures of the elements. Click on the element to see more photos of the elements and to get facts about the element.

Basic Printable Periodic Table of the Elements
This printable periodic table contains the element's atomic number, element symbol and atomic mass.

Periodic Table of the Elements
This printable periodic table contains the element's name, atomic number, element symbol and atomic mass.

Printable Color Periodic Table of the Elements
This printable periodic table contains the element's name, atomic number, element symbol and atomic mass. The colors represent the different element groups.

Printable Periodic Table of the Elements - Boiling Points
This printable periodic table contains the element's atomic number, element symbol and normal boiling point.

Basic Color Printable Periodic Table of the Elements
This printable color periodic table contains the element's atomic number, element symbol and atomic mass. The colors represent the different element groups.

Printable Periodic Table of the Elements - Density
This printable periodic table contains the element's atomic number, element symbol and density under normal conditions. The colors set apart gaseous elements from solid or liquid at normal temperatures.

Printable Periodic Table of the Elements - Abundance in Earth's Crust
This printable periodic table has the element's name, atomic number, atomic symbol and amount found naturally in the Earth's crust.

Printable Periodic Table of the Elements - Electron Configurations
This printable periodic table contains the element number, element symbol and electron configuration.

Printable Periodic Table of the Elements - Electronegativity
This color printable periodic table contains the element number, element symbol and electronegativity. The colors differentiate between different electronegativity ranges.

Printable Basic Periodic Table of the Elements
This printable periodic table contains the element's name, symbol and atomic number.

Printable Periodic Table of the Elements - Melting Points
This printable periodic table contains the element's atomic number, element symbol and normal melting point.

Printable Color Periodic Table of the Elements
This printable color periodic table contains the element's name, symbol and atomic number. Colors represent the different element groups.

Printable Periodic Table of the Elements - Radioactivity
This printable periodic table contains the element's atomic number, symbol and number of known isotopes. The colors represent the half-life of the most stable isotope.

Printable Periodic Table of the Elements - Abundance in Sea Water
This printable periodic table has the element's name, atomic number, atomic symbol and amount found naturally in the Earth's crust. This number is an average figure in milligrams per liter of sea water. Colors represent ranges of concentration.

Printable Periodic Table of the Elements - Maximum Valence
This printable periodic table contains the element's name, symbol and atomic number. Colors represent the maximum valence of the element.

Tabla Periódica de los Elementos
Esta tabla de colores para imprimir periódicos de los elementos que incluye el nombre del elemento, número atómico, símbolo, y el peso atómico. Los colores indican los grupos de elementos.

5 Elements
There are 5 elements in many philosophies and traditions around the world. Here is a look at the 5 elements in Chinese, Japanese, Buddhist, Greek, Babylonian and alchemy.

Black and White Table
Black and White Table

Trends in the Periodic Table
Learn about the periodic properties or trends in the periodic table of the elements.

What Are the First 20 Elements?
Here are the first 20 elements and their symbols.

Why Is the Periodic Table Important?
Learn why the periodic is important and how it is used as a vital tool in chemistry.

Learn about the Periodic Table and the Elements
Learn about the periodic table and the chemical elements. You'll find facts for the elements, periodic tables and information about how the elements are organized in the periodic table, element quizzes, and properties of element groups.

All About the Periodic Table
Get a periodic table and find out how to use one.

How To Memorize the Periodic Table
Get step by step instructions to memorize the periodic table of the elements, including printable tables and a blank practice table.

Element Names That Can Be Spelled Using Element Symbols
This is a list of thel element names that can be spelled out using element symbols.

What Is the Importance of Color on the Periodic Table?
Learn why most periodic tables are colored and what the importance of the colors is.

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