Element Rebus for Hydrogen


Chem4Kids Scientist Guy with Spiked Hair
Let's start our tour of the periodic table with hydrogen (H). Why start with hydrogen? Hydrogen is the first element in the periodic table and the most basic and common of all elements in the Universe. Over ninety percent of all the atoms in the universe are hydrogen atoms, and they are the lightest of all elements.

Although it has been around forever, it took a chemist named Lavoisier to name it. The name hydrogen comes from the Greek word "hydro", which means water (H2O). Lavoisier knew that hydrogen was in all water molecules. Scientists use the letter "H" to represent hydrogen in all chemical equations and descriptions. You can also find hydrogen closer to home in every organism, blowtorches, and low temperature freezing processes.

Where can you find hydrogen?

The Sun
Hydrogen is very easy to burn. As you know, the Sun is one big ball of fire. One of the elements that makes the sun burn so brightly is hydrogen.
Welding and Blowtorches
Sometimes you see someone working with a blowtorch, or welding something together. They use gases that can burn very hot and make a bright flame. One of those gases is hydrogen.
Plants and Sugars
Hydrogen is in all plants. There are sugars all throughout plants and there is hydrogen in sugar. That's why animals eat plants... For the sugar and the energy.
Hydrogen is used in something called cryogenics. Cryogenics is a process when scientists freeze things. When hydrogen is in a liquid form it is very, very cold. Scientists use this cold hydrogen to freeze things very quickly.

► More about the orbitals and compounds of hydrogen.
► Next element of the periodic table.

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Related Links
- Chem4Kids: Periodic Table
- Chem4Kids: Atoms
- Chem4Kids: Compounds
- Chem4Kids: Oxygen
- Chem4Kids: Fusion Reactions
- Geography4Kids: Hydrosphere
- Geography4Kids: Solar Radiation

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