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WikiCards · Card list · Science cards · Aluminium oxide
Uncommon card · Science
Aluminium oxide, an Uncommon card
Aluminium oxide, commonly called alumina, is an inorganic compound of aluminium and oxygen with the chemical formula Al2O3.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 78
- DEF
- 82
- Power
- 160
- Wikipedia reads a year
- 160,000
Power 160 (ATK + DEF): stronger than 85 % of WikiCards cards.
Aluminium oxide quiz: 3 questions
Three questions on the Aluminium oxide card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Gem-quality corundum forms rubies and ______.
Answer
sapphires. Gem-quality corundum forms rubies and sapphires. From the Aluminium oxide article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Palace. Palace 86 · Mass 81 · Aluminium oxide 78 · Catamaran 75 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- At ambient conditions, its thermodynamically stable crystalline form is α-Al2O3, which has the corundum structure.
- Gem-quality corundum forms rubies and sapphires.
- Aluminium oxide also occurs in several metastable crystalline forms, commonly called transition aluminas.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Aluminium oxide article was read about 160,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 78 and blocks with 82: each hit it takes is cut by 33 %.
How to get Aluminium oxide
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Aluminium oxide in the power ranking, all domains together.
- CatamaranUncommon · Arts · ATK 75 DEF 85
- MünsterUncommon · Society · ATK 79 DEF 81
- PermutationUncommon · Science · ATK 82 DEF 78
- HotelUncommon · Society · ATK 80 DEF 80
- HuếUncommon · History · ATK 81 DEF 79
- HeatUncommon · Society · ATK 84 DEF 76
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Aluminium oxide (revision), CC BY-SA 4.0. Photo : Ben Mills, Public domain, Wikimedia Commons.
