Periodic Table Quiz Download
Keith Tolzmann
The rows of the periodic table are called periods, while the columns of the table are called groups. Elements in the same period share the same highest ground state electron energy level. Elements in the same group have the same number of valence electrons.
The Russian scientist Dmitri Mendeleev proposed a periodic table similar to the one we use today in 1869. He arranged the elements according to "periodic law", where element properties could be predicted based on recurring similarities between elements (periodicity).
The modern periodic table orders elements by increasing atomic number, which is the number of protons in the atom of the element. Mendeleev did not know about the parts of the atom, so he used the next best thing -- atomic weight.
Even though each atom has more electrons as you move from left to right across the periodic table, the atomic radius decreases. The reason is that you're also adding more protons, which exert a stronger attractive force on the electrons, drawing them in a tiny bit closer. Ionic radius also decreases, although not for the exact same reason.
If you stop to think about it, the smallest atom is the one with the smallest number of protons. This is hydrogen, located in the top left side of the periodic table. Hydrogen is particularly small because the most common isotope doesn't have a neutron, plus it readily loses its electron.
In order for an atom to have a high electron affinity, it needs to be in a position to accept electrons. The alkaline earth metals (like calcium and magnesium) have filled s subshells, so they are stable. If anything, the alkaline earths prefer to lose electrons and exist as cations.
The periodic table isn't your thing, but you finished the quiz, so you know more now that you did before. From here, you can learn your way around a periodic table or perhaps you'd like to find out which chemical element suits your personality best.
Congratulations! You know enough about the periodic table of the elements to use it to look up element facts and work basic chemistry problems. However, there's still a lot to learn. Master the table so you can perform cool chemistry experiments and fully understand how they work.
9/12. Two were educated guesses. I'm ashamed to say I didn't get the year Mendeleev proposed the table even though it's written at the top, as a previous poster noted. The other two I got wrong were the first artificial element and the rarest element
I'll have to get my #1 son the ChemE to answer, I always thought that the table wasn't logical and or missing pieces. I was right 40 years ago. So is the first composite Carbon/Carbon made for the nose cone and leading wing edges of the shuttle a top secret? Composites come out these days for hail proof car panels, fishing poles and tennis rackets; could they with stand the heat of re entry?
The periodic table is an important tool used to organize the known elements, and this quiz/worksheet combination will help you test your knowledge on how the periodic table is organized. The practice questions on the quiz will test you on the characteristics of the periods on the table, the characteristics of the groups on the table, and the properties that place elements in a given group or period.
"2019 has been designated by UNESCO as the International Year of the Periodic Table (IYPT), marking the 150th anniversary of the Mendeleev periodic table, which is an iconic image and a vital tool to all who learn and work in science, at all stages of their learning and careers" (Royal Society of Chemistry, 2019). Visit our International Year of the Periodic Table on the first floor of Oboler Library in the New Books area.
Be a part of this exciting world conversation about the periodic table using #IYPT2019 and #ChemChat on your social media. See below for links to more information and resources about the periodic table.
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