Cora's model does not exist in the atomic table, but close to helium which has a neutron of 2 and an electron and proton of 2 as well.
Explanation:
The number of electrons in an atom is the same as the number of protons, so if the number of electrons is 2, the number of protons is 2.
The neutron of an atom is the result of the subtraction of the atomic number from the atomic mass of the atom. Cora's has an atomic number of two (number of electrons) and the atomic mass of four. Therefore the neutron should be two (helium) and not four.
They would have a ligature around their legs. One person would put their left leg next to the other person’s right leg and wrap the ligature around the legs to keep them together and act as one leg.