The daughter nucleus after α-decay of ₆C¹⁰ will be ____?

₂He³

₄Be⁶

₄Be⁵

None of these

Alpha decay reduces both the atomic number by 2 and the mass number by 4.

Carbon-10 (₆C¹⁰) undergoes α-decay, emitting a ₂He⁴ particle, leaving behind ₄Be⁶ as the daughter nucleus.