Which describes nuclear fusion?(1 point)

Question

Responses

starts when a neutron slams into an atom, causing two atoms to form one, heavier atom
starts when a neutron slams into an atom, causing two atoms to form one, heavier atom

starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms
starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms

starts when two atoms slam together to form one, heavier atom
starts when two atoms slam together to form one, heavier atom

starts when two atoms slam together, causing the larger atom to split into two smaller atoms

Answer 1

starts when two atoms slam together to form one, heavier atom