AP Chemistrymediummcq1 pt
Successive ionization energies of an element jump sharply between the 2nd and 3rd values. Which group does the element most likely belong to?
A.Group 2
B.Group 17
C.Group 1
D.Group 18
Explanation
Core Concept
A large jump means the third electron comes from a filled inner shell after two easy-to-remove valence electrons. Two low ionization energies then a spike is the signature of a Group 2 (alkaline earth) element.
Correct Answer
AGroup 2
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