Xiang is comparing the strong nuclear force and the weak nuclear force. which describes the weak nuclear force only? check all that apply.
is attractive
is repulsive
has an infinite range
has a very small range
is stronger than the gravitational force
is weaker than the electromagnetic force

is attractive

has a very small range

is stronger than the gravitational force

Explanation:

Nuclear force refers to the force that binds nucleons together in the nucleus of an atom. Nuclear forces are usually short range attractive forces that bind nucleons together in the nucleus. These forces are usually stronger than most other kind of binding forces. Hence a weak nuclear force is stronger than both electromagnetic and gravitational forces respectively.

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.