According to the Group Displacement Law, the emission of a single -particle from a radioactive parent element causes the resulting daughter element to:

Question

According to the Group Displacement Law, the emission of a single $\alpha$ -particle from a radioactive parent element causes the resulting daughter element to:

Prashant Kotian · Accepted Answer

Correct answer: A. An -emission reduces the mass number by and the atomic number by . Consequently, the daughter element shifts two groups to the left in the periodic table relative to the parent.

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