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WikiCards · Card list · Science cards · Magnesium oxide
Uncommon card · Science
Magnesium oxide, an Uncommon card
Magnesium oxide, or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 69
- DEF
- 67
- Power
- 136
- Wikipedia reads a year
- 88,000
Power 136 (ATK + DEF): stronger than 70 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- It has an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2− ions held together by ionic bonding.
- Magnesium hydroxide forms in the presence of water, but it can be reversed by heating it to remove moisture.
- Magnesium oxide was historically known as magnesia alba, to differentiate it from magnesia nigra, a black mineral containing what is now known as manganese.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Magnesium oxide article was read about 88,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 69 and blocks with 67: each hit it takes is cut by 27 %.
How to get Magnesium 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 Magnesium oxide in the power ranking, all domains together.
- Ferguson JenkinsUncommon · History · ATK 69 DEF 67
- NasreddinUncommon · Arts · ATK 72 DEF 64
- Journey to the Centre of the EarthUncommon · Arts · ATK 71 DEF 65
- MotocrossUncommon · Society · ATK 73 DEF 63
- Odilon RedonUncommon · History · ATK 70 DEF 66
- Gouldian finchUncommon · Nature · ATK 63 DEF 73
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, Magnesium oxide (revision), CC BY-SA 4.0. Photo : No machine-readable author provided. Walkerma assumed (based on copyright claims)., Public domain, Wikimedia Commons.
