Chemicals/Hydrogens/Quiz

Hydrogens is an effort, in a lecture format, to describe the chemicals that are the element hydrogen.

You are free to take this quiz based on the lecture hydrogens at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the and  templates. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

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To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz
{Yes or No, Chemical reactions are associated with some changes in the chemical nature/properties of chemicals. + Yes - No
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{The emission spectrum of atomic hydrogen is divided into a number of spectral series, with wavelengths given by the { Rydberg (i) } formula.
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{Yes or No, Some hydrogen spectral lines fall outside the usual series, such as the 21 cm line; these correspond to much rarer atomic events such as hyperfine transitions. + Yes - No
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{True or False, The difference between geochemical reactions and astrochemical reactions is that one is restricted to Earth. + TRUE - FALSE
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{Complete the text: A short or { incomplete (i) } realization of a certain { method (i) } or idea to { demonstrate (i) } its feasibility is called a proof of { concept (i) }.
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{Yes or No, The spectral lines of hydrogen correspond to particular jumps of the electron between energy levels. + Yes - No
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{True or False, The lightest and most common isotope of hydrogen, having a single proton and no neutrons- 11H is called protium. + TRUE - FALSE
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{Complete the text: A natural { science (i) } that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alterations in the constitution of their { molecules (i) } is called { chemistry (i) }.
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{Yes or No, A reaction for which no reaction intermediates have been detected or need to be postulated in order to describe the chemical reaction on a molecular scale is called an elementary reaction. + Yes - No
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{True or False, Use of an appropriate hydrogen level is necessary to favor dehalogenation of chlorinated solvents over other hydrogen using processes. + TRUE - FALSE
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{Yes or No, Deuterium is an isotope of helium. - Yes + No
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Hypotheses

 * 1) There is at least one chemical unique to Earth.