Which of the following statements are true? check all that apply. check all that apply. kirchhoff's loop rule is based on the conservation of energy. kirchhoff's loop rule is based on the conservation of charge. kirchhoff's junction rule is based on the conservation of energy. kirchhoff's junction rule is based on the conservation of charge. the sum of the changes in potential around any closed loop of a circuit must equal zero. the sum of the currents entering a junction must equal the sum of the currents exiting that junction.

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.

are there options? cause you ain’t. real specific

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