Helium
By: Kaylee Taylor
Element Introduction
- Element name: Helium
- How the element got its name?: From the Greek god of the sun, Helios
- What group it is a part of ?: 18. Noble gases
- What period it is a part of?: 1
- Visual representation of the element:
General Information
- Chemical Symbol: He
- Atomic Number: 2
- Atomic Mass: 4
- Number of protons, neutrons, and electrons: P-2 N-2 E-2
- Number of valence electrons: 2
- Any known isotopes of the element: He-3 and He-4
- A Bohr model representing your element:
Physical Properties
- Melting point: -458.0°F
- Boiling point: 452.07°F
- Density: 0.0001785 grams per cubic centimeter
- Abundance in the earth’s crust: 8×10-3 milligrams per kilogram
- Standard state of the element: Gas
Uses
Explain where the element is found: In the ground
Explain what form the element is found in: Gas form
- Give at least 3 “real world” uses for the element. In other words, what do humans use it for: Helium is used for balloons, blimps, and for deep sea diving.
Two Interesting Facts
- Helium is the reason the sun appears yellow
- Helium is the second most abundant resource in the univrse
Sources
"The Element Helium." It's Elemental -. Steve Gagnon, n.d. Web. 12 Oct. 2015.
Bentor, Yinon. Chemical Element.com - Helium. Oct. 13, 2015 <http://www.chemicalelements.com/elements/he.html>