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Quiz by Natalie Wieland
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10 questions
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- Q11. Mendeleev left blank spaces in his periodic table where he thought elements that had not yet been discovered should go. He was able to predict the properties of these elements bynoting periodic trends in the properties of known elements that surrounded the blank spaces in the periodic tablestudying the new elements produced by radioactive decaystudying the spectra of stars that contained themtesting their properties such as melting point, density, and valence60s
- Q2Which of the following statements best describes the alkaline earth elements?They have two valence electrons, and they form ions with a 2- chargeThey have one valence electron, and they form ions with a 1- charge.They have two valence electrons, and they form ions with a 2+ chargeThey have one valence electron, and they form ions with a 1+ charge.60s
- Q3Which pair are elements of which the chemical properties of those elements are most similar.bromine and chlorinesodium and magnesiumsodium and calciumsodium and chlorine60s
- Q4Potassium and Cesium both belong to which family?transition metalshalogensalkaline earth metalsalkali metals60s
- Q5Which element is in period five group 2BaSiNbSr60s
- Q6How was Mosely's table different than Mendeleev's?They are exactly the sameMosely's put the elements into columns.Mosely's was in order of increasing atomic massMosely's was in order of increasing atomic number60s
- Q7Which one of the following is a halogen?TinIodineTelluriumStrontium60s
- Q8Which group is the most reactive METALS?AlkaliHalogenstransitionAlkali earth60s
- Q9A common characteristic of the halogens is that theyhave one valence electron and tend to form ions with a charge of -1have seven valence electrons and tend to form ions with a charge of +1have one valence electron and tend to form ions with a charge of +1have seven valence electrons and tend to form ions with a charge of -160s
- Q10Which of the following is TRUE concerning sulfur?It is a nonmetal and has four valence electronsIt is a metal and has four valence electronsIt is a metal and has six valence electronsIt is a nonmetal and has six valence electrons60s