Kw-logo-smaller

The Periodic Table of Elements - Periodic Chart

Chemistry is the section of science that studies the characteristics of substances and their reactions when they are mixed with each other. Basically, chemistry is the study of matter and the composition, structure and reactions of matter. So what is matter? Everything on Earth and in our universe is made up of matter - anything you can see, touch or smell is considered matter.

Matter comes in three different main states: gases, liquids and solids. There's also a fourth state, plasma, but it only exists at very high temperatures. Molecules in a plasma state don't always behave the same. Speaking of molecules... atoms and molecules are what make matter possible. They're what every material in the universe is made of.

Confused? Because there are so many elements (a substance that cannot be broken down any further) and there's the chance of more being discovered, they've been organized into a table. The Periodic Table of Elements or Periodic Chart as it's also known as, is based on atomic numbers and electron configuration. There are 109 elements that make up the Periodic Table of Elements so far. Element names are abbreviated. Most of the time the abbreviations make sense (like C for Carbon) but not always (like Na for Sodium.) There are four elements that make up 99 percent of living organisms. They are: hydrogen (H), oxygen (O), nitrogen (N) and carbon (C).

The Periodic Table of Elements is arranged in rows called periods. Columns in the chart are grouped together by similar properties like gases, metals and earth. The number in each box is the number of atoms and the letters are the abbreviation for the symbol. Click here to check out the Period Table of Elements and more information on the elements.

Looking for the coolest chemistry-related science fair project? How about making the biggest bubble? Click here for bubbles of fun and for the 411 on bubbles.

Related Stories:

  • Science Fair Projects
  • How Helium Works
  • Blood Doping
  • 4 Comments

    latest videos

    F1015467063703

    Best Chemical Reaction? Vote!

    • Baking a cake.
    • Starting a fire.
    • Dying your hair.
    • Washing your clothes.

    related stories

    Random in the forums

    hollybl2468
    This looks like fun, lol. I dare you to use 'rubber duckie'. Good luck, mwah hah hah. :devil
    reply 14 minutes
    vindieselfan
    Is there any vin diesel fan girls here ? add me. I will share some great pictures  ;)
    reply 42 minutes
    hollybl2468
    hollybl2468 posted in Debating:
    "Jenna_love" wrote: So your going to go to hell. You don't have to be religious you just have to consider God as your Lord and only Lord "Badaaron2245" wrote: That where ur wrong because there is a GOD and heaven and hell are real places and Jesus Is coming back again Don't some of these posts, like the ones above, belong in the Politics and Religion forums? Everyone should be entitled to their own opinion, not damned to hell for having their own beliefs. I will admit I haven't ready everything in this topic, but so far, I'm agreeing with Teh-Skittlez. I'm not a religious person, I'm not saying anyone is "wrong", but I do think we should live our lives to the fullest, because the truth is, we don't know what comes after this life and therefore, doesn't it make sense that we should make the most of the one we have? The things we accomplish and the people we build relationships with may not matter after we're gone, and probably won't be recorded in any history books, but does that make them any less important to us?
    reply about 1 hour
    arthi
    arthi posted in General:
    Banned for lack of punctuation.
    reply about 1 hour
    hollybl2468
    hollybl2468 posted in Debating:
      "lelnah" wrote: But we're not all just cute rubber duckies in a strawberry bubble bath. I want to say thank you for that, you gave me a laugh. You are the first person I have known (other than myself) to say rubber duckie. :D "lelnah" wrote: Which is more? Are humans harmful more than helpful? Or helpful more than harmful? Well, the "help" humans provide are for our own race, to cure ourselves from illnesses and build ourselves bigger buildings, etc. But meanwhile, we are damaging our planet and destroying the habitats/food resources of other animals. I would have to say we are harmful more than helpful, in terms of what we do to the earth and the creatures around us.  
    reply about 1 hour

    play online games