The atom 
Fr decays to 
Ra by emitting what kind of nuclear radiation?
A) alpha
B) beta-minus
C) beta-plus
D) gamma
E) x-rays.
Correct Answer:
Verified
Q29: When a β+ particle is emitted from
Q29: When a β+ particle is emitted from
Q30: What is the mass number of alpha
Q31: In beta-minus decay
A)a proton is emitted.
B)a neutron
Q32: During β+ decay
A)a neutron is transformed to
Q33: When a β- particle is emitted from
Q36: An α particle is also known as
A)an
Q37: A β- decay occurs in an unstable
Q38: In β- decay,the number of neutrons in
Q39: A gamma ray is also known as
A)an
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