Which statement is true about the process shown? Free
neutron
Product
Target
nucleus
Free
neutron
Free
neutron
Product
Free
neutron
A. The process is nuclear fusion, in which two smaller nuclei
combine to form one larger nucleus.
OB. The process is nuclear fission, in which a nucleus splits apart to
form smaller nuclei.
O C. The process is nuclear fusion, in which a nucleus splits apart to
form smaller nuclei.
D. The process is nuclear fission, in which two smaller nuclei
combine to form one larger nucleus.

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray