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Definition: Helium is a colorless, odorless, and tasteless gas that is part of the noble gas group in the periodic table.
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Symbol: Its chemical symbol is He.
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Atomic Number: Helium has an atomic number of 2, which means it has two protons in its nucleus.
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Discovery: It was discovered in 1868 by a scientist named Pierre Janssen during a solar eclipse.
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Occurrence: Helium is the second most abundant element in the universe, but it is rare on Earth. It is primarily found in natural gas deposits.
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Uses:
- Helium is used to fill balloons because it is lighter than air and safe.
- It cools superconducting magnets in MRI machines.
- Helium is also used in scientific research and in some types of lighting.
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Properties:
- It is a non-reactive gas, meaning it doesn't form compounds easily with other elements.
- It has a low boiling point, which allows it to remain a gas even at very low temperatures.
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Safety: Helium is considered safe to inhale in small amounts, but it can be dangerous to inhale large volumes since it can displace oxygen in the lungs.
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Interesting Fact: When you inhale helium, it can make your voice sound funny and high-pitched, but this is a temporary effect.
Overall, helium is an important and interesting element in both science and everyday life!
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