What Is a Chemical Element?
Get the definition for a chemical element.
Here's a list of chemical elements ordered by increasing atomic number. The names and element symbols are provided.
Periodic Table of the Elements
Click on an element's symbol to get facts about its discovery, word origin, isotopes, properties, uses, and sources.
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.
Memorize the Elements
Here is a mnemonic to help you memorize the first twenty elements in the periodic table.
Alphabetical List of Elements
Here's a list of the elements, in alphabetical order according to their IUPAC names.
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.
Element & Periodic Table Quizzes
Quizzes about the elements and periodic table are extremely popular. Here are some of the top chemistry quizzes that test your familiarity with the elements and understanding of the periodic table.
Carbon is an element that is essential for life. The carbon cycle describes the storage and exchange of carbon between the Earth's biosphere, atmosphere, hydrosphere, and geosphere.
Have you ever wondered which element has the highest density or mass per unit volume? Here's the answer.
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.
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 elements uses and their impact on our lives.
Element Picture Quiz
Can you recognize the elements when you see them? Here's a quiz that tests your ability to identify an element based on its appearance.
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 Symbols in Element Names
Here's a list of the element names that can be broken down into element symbols. For example, the letters in the element neon are the symbols for Ne, O, N (neon, oxygen, and nitrogen).
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.
Elements in the Human Body
Find out what elements are in the human body and what these elements do.
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.
Are you wondering which element is the heaviest? Here's an answer to the question.
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.
What are the six elements that are liquid at or near room temperature? Your About Guide answers this question and provides a few facts about each element.
Liquid Elements Photo Gallery
Do you know what the pure elements look like in liquid form? Some elements, like mercury, you may have seen as a liquid because that is its usual state. Other liquid elements may be less familiar to you.
Learn about the processes involved in the nitrogen cycle, the biochemical cycle that describes the transformations of nitrogen as it goes through nature.
Printable Periodic Table of the Elements
Download or print these periodic tables to help work chemistry problems or to predict properties of the 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.
Here's a list of elements that are toxic or poisonous and have no known nutritional value.
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...
What Was the First Known Element?
Some of the chemical elements were known to ancient man. Can you name them?
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.
If You Were an Element, Which Would You Be?
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?
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 a collection of photographs of the elements to help you out.
Element Types - Chemistry of Groups
Learn the locations of element types on the periodic table and get summaries of the defining characteristics of element groups, such as alkaline earths, noble gases, halogens, etc.
What Is the Most Conductive Element?
Here is a look at the three most electrically conductive elements. As you might expect, all three conductive elements are metals.
Elements may be categorized according to element families. This is an explanation of element families, with descriptions of each one.
What Is the Difference Between an Element Family and an Element Group?
The terms element family and element group are used to describe sets of elements sharing common properties. Here's a look at the difference between a family and a group.
Which Element Am I? - Element Identification Quiz
How well do you know the elements? This quiz sees if you can identify chemical elements.
Name 5 Nonmetals and 5 Metals
It's important to be able to distinguish between metals and nonmetals. Here is a list of 5 metals and 5 nonmetals and an explanation of how you can tell them apart.