1. Noble Gases By: Shelby Schweers

2. Helium Symbol – He Atomic Number – 2 Atomic Weight – 4.0026
Non reactive
Group 18
Period 1
8 valence electrons
Non-metal
Found in the ground

3. Neon Symbol - Ne Atomic Number - 10 Atomic Weight - 20.1797
Nonreactive
Group 18
Period 2
8 valence electrons
Nonmetal
Found in Earth's atmosphere

4. Argon Symbol – Ar Atomic Number – 18 Atomic Weight – 39.948
Nonreactive
Group 18
Period 3
8 valence electrons
Nonmetal
Found in Earth’s atmosphere

5. Krypton Symbol - Kr Atomic Number - 36 Atomic Weight – 83.8
Nonreactive
Group 18
Period 4
8 valence
Nonmetal
Found in the Earth’s atmosphere

6. Xenon Symbol – Xe Atomic Number – 54 Atomic Weight –131.29 Nonreactive
Group 18
Period 5
8 valence electrons
Nonmetal
Found in Earth’s and Mars’s atmosphere
Also in cars lights

7. Radon Symbol - Rn Atomic Number - 86 Atomic Weight – 222 Nonreactive
Group 18
Period 6
8 valence electrons
Nonmetal
Found in igneous rock and soil

8. Oganesson Symbol – Og Atomic Number – 118 Atomic Weight – (294)
Reactivity is unknown
Group 18
Period 7
Eight valence electrons
Nonmetal
Found in labs
Many times when you look up periodic tables does not have Oganesson as a noble gas. It is just in group 18 because of its number of valence electrons.

9. Resources http://periodictable.com/ http://www.ptable.com/
about-xenon.html
facts/