Page 39 - Curriculum Visions Dynamic Book

 The atomic structure of the noble gases is given on these pages. Except helium, they each have different atomic weights but they share a common property of having eight electrons in their outer shells. This makes them inert and very stable.
Xenon
Argon
 All lights in discharge tubes are generally called “neon”; however,
neon only emits a reddish-orange
glow. Each of the rare gases produces
a different “neon” colour. For example, helium produces a yellow “neon” light when an electric current flows through it.
Radon
Krypton
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