When a uranium-235 nucleus absorbs a
slow-moving neutron, different nuclear reactions may occur.
One of these possible reactions is represented by the
complete, balanced equation below.

For this reaction, the sum of the masses of
the products is slightly less than the sum of the masses of
the reactants. Another possible reaction of U-235 is
represented by the incomplete, balanced equation below.

62 Identify the type of nuclear reaction
represented by equation 1. [1]

**HIGHLIGHT TO SEE THE ANSWER**

fission
transmutation
note=
the transmutation answer is garbage, but
accepted by the regents. You should know what
fission is. |

63 Write a notation for the missing product
in equation 2. [1]

**HIGHLIGHT TO SEE THE ANSWER**

64 Determine the half-life of krypton-92 if
only 6.0 milligrams of an original 96.0-milligram sample
remains unchanged after 7.36 seconds. [1]

**HIGHLIGHT TO SEE THE ANSWER**

**
Answer-1.84s**
96.0mg=>48.0=>24.0=>12.0=>6.0mg
7.36seconds/4 half
lives=1.84s |