Can the transition temperature of high-temperature superconductors be brought up to room temperature? What are the chemical consequences of having an element with an atomic number above 137, whose 1s electrons must travel faster than the speed of light? Is Neutronium-4 possible?

Can the transition temperature of high-temperature superconductors be

1.	Can the transition temperature of high-temperature superconductors be brought up to room temperature? What are the chemical consequences of having an element with an atomic number above 137, whose 1s electrons must travel faster than the speed of light? Is Neutronium-4 possible?
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