Answer: Xe, Kr, Ar, Ne
Explanation:
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That both of them are warm....at a certain temputurature causing one to fell,cozy
Answer:
plants take carbon dioxide out of the atmosphere and use the energy from sunlight to combine the carbon dioxide and water to form sugar and oxygen
Answer:
The fraction of the available octahedral positions are filled with
ions is 
Explanation:
If there are n numbers of spheres in HCP in packing:
Number of octahedral void = n
Number of tetrahedral void = 2n
Total number of voids = n + 2n = 3n
The
crystal structure consists of an HCP arrangement of
ions.
Number of spheres in HCP = 6
Number of
= 6
Number of octahedral voids = 6
Number of tetrahedral void = 12
Number of aluminum ions when there are 6
ion =
Number of voids in which
ions are present = 4
The fraction of the available octahedral positions are filled with
ions = 