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:
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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:
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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

  1. Helium is the reason the sun appears yellow
  2. 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>