Sagot :
[tex]\large \bold {SOLUTION}[/tex]
[tex]\small\boxed{\green{\sf{ {_{88}^{226}}Ra→{_{86}^{222}}Rn + \: _{2}^{4}He→{_{84}^{218}}Po + \: _{2}^{4}He}}}[/tex]
By α-decay, Radium-226 undergoes the deduction of precisely 4 atoms that are composed of 2 protons and neutrons each. Two α-decays will produce as a product of Polonium-218 plus the Helium atom that is released from the process.
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