Which was the first transuranium element synthesized in laboratory a. plutonium b. technetium c. uranium d. neptunium

When the volume and number of particles of a gas are constant which of the following is also constant

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Need , hurry pls create a superhero out of the element iron, what are its powers and his sidekick ( an element that works well with iron). how was the superhero made and who discovered him