Can you answer these questions about the periodic table of the elements?
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Answer 1 (earth, fire, water, ether)
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Answer 2 (92)
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Answer 4 (relative atomic mass)
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Answer 2 (1940)
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Answer 4 (5) For more details see next question
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Answer 1
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Answer 2 (Re)
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Answer 2 (Tc)
Also of Interest
- more quizzes
- The Periodic System between Chemistry and Physics
In the 1920s the periodic system turned out to be a macroscopic representation of the internal structure of the atoms – making it as much about physics as it is about chemistry - Periodic Table of the Elements Coloring Book
An interactive introduction to the building blocks of matter for children of all ages - Periodic Debate
Mendeleev’s Periodic Table is, for many, the symbol of chemistry but is the current layout the best one? - Chemistry Advent Calendar 2018,
ChemViews Mag. 2018.
https://doi.org/10.1002/chemv.201800109
Daily highlights from the periodic table of the elements
In one question Tc is classified as a naturally occurring element (it is not), and in another question it is the first artificially produced element. How can it be both?
Tc is the answer to the question “What was the first artificially produced element?”
Tc also appears in the multiple choice list for the question “Which naturally occuring element was discovered last?” This does not mean that it is a naturally occurring element. Only one of the answers is correct