What are the symbols of four isotones of rm 236Th?

Isotones are nuclei that have the same number of neutrons but different numbers of protons. For thorium-236 (²³⁶Th), which has 90 protons and 146 neutrons, four isotones would be isotopes of elements with 146 neutrons. These isotones include: ²³⁴U (92 protons), ²³⁵U (92 protons), ²³⁷Np (93 protons), and ²³⁸Pu (94 protons). Each has a different atomic number but shares the same neutron count.