Nuclear Reactions & Half Life

What particle completes this reaction?

• alpha particle
• beta particle
• gamma particle
• neutron

Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 

• alpha
• beta
• gamma
• none

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

What is the symbol for an alpha particle?

• ⁴₂He
• ⁰_-1e
• ⁰₊₁ e
• ¹₀n

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

Complete the nuclear reaction

₈₅²⁰⁹At = ___ + ₂⁴He

• ₈₃²⁰⁵Bi

• ₈₆²⁰⁹Rn

• ₈₁²⁰⁷Tl

• ₈₅²⁰⁸At

Complete the nuclear reaction

₂₇⁶⁰Co = ___ + _-1⁰e

• ₂₅⁵⁶Mn

• ₂₈⁶⁰Ni

• ₂₃⁵⁸V

• ₂₇⁵⁹Co

Has the symbol

• Alpha
• Beta 
• Gamma

What is the half-life of iodine-131?

• 32 days
• 8 days
• 16 days
• 24 days

The % of the parent isotope remaining after 1 Half Life.

• 50%

• 25%

• 12.5%

• 6.25%