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June 1, 2015








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Krypton is one of the rarest gases in the Earth’s atmosphere, accounting for only 1 part per million by volume. Atomic Number: 36 Atomic Weight: 83.798 Melting Point: 115.79 K (-157.36°C or -251.25°F) Boiling Point: 119.93 K (-153.22°C or -243.80°F) Density: 0.003733 grams per cubic centimeter Phase at Room Temperature: Gas Element Classification: Non-metal Period Number: 4 Group Number: 18 Group Name: Noble Gas What's in a name? From the Greek word for hidden, kryptos...
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Krypton is used in some types of photographic flashes used in high speed photography. Some fluorescent light bulbs are filled with a mixture of krypton and argon gases. Krypton gas is also combined with other gases to make luminous signs that glow with a greenish-yellow light. In 1960, the length of the meter was defined in terms of the orange-red spectral line of krypton-86, an isotopes of krypton...
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