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Neon and Xenon – Comparison – Properties

This article contains comparison of key thermal and atomic properties of neon and xenon, two comparable chemical elements from the periodic table. It also contains basic descriptions and applications of both elements. Neon vs Xenon.

neon and xenon - comparison

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Neon and Xenon – About Elements


Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.


Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts.[10] Although generally unreactive, xenon can undergo a few chemical reactions. Xenon was first discovered in 1898 by the Scottish chemist William Ramsay and English chemist Morris Travers. The name xenon for this gas comes from the Greek word ξένον [xenon], neuter singular form of ξένος [xenos], meaning ‘foreign(er)’, ‘strange(r)’, or ‘guest’. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. For physicists and for reactor operators, it is important to understand the mechanisms that produce and remove xenon from the reactor to predict how the reactor will respond following changes in power level.

Neon in Periodic Table

Xenon in Periodic Table

Source: www.luciteria.com

Neon and Xenon – Applications


Neon is often used in signs and produces an unmistakable bright reddish-orange light. Although tube lights with other colors are often called “neon”, they use different noble gases or varied colors of fluorescent lighting. Neon is also used to make high-voltage indicators and switching gear, lightning arresters, diving equipment and lasers. Liquid neon is an important cryogenic refrigerant. It has over 40 times more refrigerating capacity per unit volume than liquid helium, and more than 3 times that of liquid hydrogen.


Xenon is useful in the following applications. The white flash of light produced by xenon makes it suitable for usage in strobe lights and to power ruby lasers. Xenon is used in light-emitting devices called xenon flash lamps, used in photographic flashes and stroboscopic lamps.

Neon and Xenon – Comparison in Table

Element Neon Xenon
Density 0.0009 g/cm3 0.0059 g/cm3
Ultimate Tensile Strength N/A N/A
Yield Strength N/A N/A
Young’s Modulus of Elasticity N/A N/A
Mohs Scale N/A N/A
Brinell Hardness N/A N/A
Vickers Hardness N/A N/A
Melting Point -248 °C -111.8 °C
Boiling Point -248.7 °C -107.1 °C
Thermal Conductivity 0.0493 W/mK 0.00565 W/mK
Thermal Expansion Coefficient N/A N/A
Specific Heat 0.904 J/g K 0.158 J/g K
Heat of Fusion 0.3317 kJ/mol 2.297 kJ/mol
Heat of Vaporization 1.7326 kJ/mol 12.636 kJ/mol