The daughter element is produced from the beta decay of ¹⁴⁵₅₆Ba is ¹⁴⁵₅₇La.
What are beta particles?
A beta particle is emitted from the nucleus of an atom during radioactive decay. The electron, however, occupies regions outside the nucleus of an atom.
Beta particle has no mass and minus charge on itself.
Radioactive decay equation for the Barium is shown as follow:
¹⁴⁵₅₆Ba → ¹⁴⁵₅₇La + °₋₁β
The daughter element which is produced from the from reaction is Lanthanum.
Hence, ¹⁴⁵₅₇La is the daughter element.
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