Symbol: Xe
Atomic Number: 54
Atomic Mass: 131.29 amu
Melting Point: 161.25 K
Boiling Point: 165.05 K
Appearance
Color: colorless gas
Crystal Structure: cubic
Usage: powerful lamps, bubble chambers
Xenon has 54 protons, 54 electrons, and 77 neutrons. It has five energy levels.
1st energy level: 2 electrons
2nd energy level: 8 electrons
3rd energy level: 18 electrons
4th energy level: 18 electrons
5th energy level: 8 electrons
Facts
Xenon is a colorless, heavy, ordorless gas.
Xenon occurs in the earth's atmosphere.
Xenon was part of the first noble gas compound synthesized.
Xenon is used in light-emitting devices called Xenon flash lamps.
Xenon should be kept in a normal sealed glass container at standard temperature and pressure becuase it may be toxic.
Xenon is non-toxic but some of its compounds may be.
Xenon is heavier than air!
The speed of sound in xenon is slower than air.
Xe-122 20.1 hours
Xe-123 2.0 hours
Xe-124 Stable
Xe-125 17.1 hours
Xe-126 Stable
Xe-127 36.41 days
Xe-128 Stable
Xe-129 Stable
Xe-129m 8.89 days
Xe-130 Stable
Xe-131 Stable
Xe-131m 4.9 days
Xe-132 Stable
Xe-133 5.24 days
Xe-133m 2.19 days
Xe-134 Stable
Xe-135 9.1 hours
Xe-135m 15.36
Xe-136 Stable
Xe-137 3.82 minutes
Xe-138 14.13 minutes
