valentina1725 valentina1725

26-03-2020
Chemistry

contestada

What is the product of the second alpha decay in this series
A) Pa-228
B)Ra-224
C)Th-224
D)U-232

Respuesta :

kerrbear2016 kerrbear2016

02-04-2020

In Alpha decay two neutrons and protons are lost, so the mass decreases by four and the atomic number decreases by two.

Therefore the correct answer is B: Ra-224.

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