1) If the following elements were involved in redox reactions, which noble-gas c
ID: 781994 • Letter: 1
Question
1) If the following elements were involved in redox reactions, which noble-gas configuration would they most likely attain? The elements to arrange are: Be, Na, F, S, Sc, As, Sr. The categories to pair them with are: He, Ne, Ar, and Kr.
2) An unknown element, X, reacts with rubidium to form the compound Rb2X . In other compounds this element also can accommodate up to 12 electrons rather than the usual octet. What element could X be?
An unknown element, , reacts with rubidium to form the compound . In other compounds this element also can accommodate up to 12 electrons rather than the usual octet. What element could be?
Mg O Cl SeExplanation / Answer
Na-Ne
F-Ne
S-Ar
Sc-Ar
As-Kr
Sr-Kr
2)
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