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WikiCards · Card list · Science cards · Hydrogen spectral series
Uncommon card · Science
Hydrogen spectral series, an Uncommon card
The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 64
- DEF
- 58
- Power
- 122
- Wikipedia reads a year
- 71,000
Power 122 (ATK + DEF): stronger than 60 % of WikiCards cards.
Hydrogen spectral series quiz: 3 questions
Three questions on the Hydrogen spectral series card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
These observed spectral lines are due to the ______ making transitions between two energy levels in an atom.
Answer
electron. These observed spectral lines are due to the electron making transitions between two energy levels in an atom. From the Hydrogen spectral series article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Ian Woosnam. Ian Woosnam 73 · European Exchange Rate Mechanism 67 · Hydrogen spectral series 64 · Bichon 54 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.
- These observed spectral lines are due to the electron making transitions between two energy levels in an atom.
- The classification of the series by the Rydberg formula was important in the development of quantum mechanics.
- The spectral series are important in astronomical spectroscopy for detecting the presence of hydrogen and calculating red shifts.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Hydrogen spectral series article was read about 71,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 64 and blocks with 58: each hit it takes is cut by 23 %.
How to get Hydrogen spectral series
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.
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Credits
Text : Wikipedia, Hydrogen spectral series (revision), CC BY-SA 4.0. Photo : OrangeDog, CC BY-SA 3.0, Wikimedia Commons.
