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Inverse spinel structures have a different cation distribution in that all of the A cations and half of the B cations occupy octahedral sites, while the other half of the B cations occupy tetrahedral sites. An example of an inverse spinel is Fe 3 O 4, if the Fe 2+ (A 2+) ions are d 6 high-spin and the Fe 3+ (B 3+) ions are d 5 high-spin.
Maghemite (Fe 2 O 3, γ-Fe 2 O 3) is a member of the family of iron oxides.It has the same formula as hematite, but the same spinel ferrite structure as magnetite (Fe 3 O 4) and is also ferrimagnetic.
In this diagram, the red team is executing a neutral zone trap resulting in the blue team dumping the puck in. The neutral zone trap (often referred to as simply the trap) is a defensive strategy used in ice hockey to prevent an opposing team from proceeding through the neutral zone (the area between the blue lines) and to force turnovers.
Polyhedral representation of spinel MgAl 2 O 4. Spinel (/ s p ɪ ˈ n ɛ l, ˈ s p ɪ n əl / [7]) is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl 2 O 4 in the cubic crystal system. Its name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals. [5]
The United States will try to win back-to-back titles when it faces Finland in the gold-medal game of the world junior hockey championship. ... Today's world juniors hockey games. All times p.m ...
In the offensive zone, the defence skaters usually "play the blue line". It is their duty to keep the puck in the offensive zone by stopping it from crossing the blue line that demarcates where the offensive zone begins. Should the puck cross this line, the offence cannot touch the puck in their opponent's zone without stopping play (see ...
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