Curated category
Nuclear reactor coolants
- LeadLead-208 holds 126 neutrons, a magic number that grants its nucleus exceptional stability. This isotope represents the heaviest stable nucleus known to…
- Carbon dioxideThe carbon atom sits at the center of a linear molecule, flanked by two oxygen atoms. Each bond measures exactly 116.3 picometers in length.
- HeliumThe observable universe contains helium at about 24% of its total elemental mass. This figure represents more than 12 times the combined mass of all heavier…
- Mercury (element)A heavy, silvery-white metal flows freely at room temperature. Mercury remains liquid until the temperature drops to minus 38.83 degrees Celsius.
- WaterA single water molecule contains two hydrogen atoms and one oxygen atom. The angle between these hydrogen atoms measures 104.5 degrees.