An Alkaline Earth Element Is Radioactive

question 5

Multiple Choice

An alkaline earth element is radioactive. It and its daughter elements decay by emitting a total of three alpha particles in succession. In what group of the periodic table is the element resulting from the emission of the third alpha particle?

• A)4A (14)
• B)5A (15)
• C)6A (16)
• D)7A (17)
• E)8A (18)

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