The 20th anniversary of the Hubble Space Telescope has been marked by a new image showing a section of a 3 lightyear high gas plume 7,500 lightyears from Earth in the Carina nebula.
This article on scientificamerican.com has further details.
The image is a made up from a composite of images from numerous sensors which detect different frequencies of light (or electromagnetic radiation - of which part of the spectrum is detected by unassisted human sight as visible light).
Images from Hubble feature in the below video:
gp1 and gp2 ionic/atomic radius difference larger than that of anion
non-metals
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gp1/2 ionic radius sharper drop
With the exception of phosphide, the difference in ionic radius between
successive anion forming non-metals is small...
15 minutes ago
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