The Atom ${ } _ { 87 } ^ { 223 } \mathrm { Fr }$

Multiple Choice

The atom ${ } _ { 87 } ^ { 223 } \mathrm { Fr }$ decays to ${ } _ { 88 } ^ { 223 } \mathrm { Ra }$ by emitting what kind of nuclear radiation?

A) alpha
B) gamma
C) beta-plus
D) x-rays.
E) beta-minus