Modifiers matching element:

• stable,
• volatile,
• metallic,
• metal,
• particular,
• decorative,
• fixed,
• individual,
• heavy,
• reactive,
• nonmetallic,
• soluble,
• inorganic,
• definite,
• physical,
• active,
• vital,
• dense,
• earthly,
• symbolic,
• military,
• common,
• noble,
• protective,
• graphic,
• single,
• structural,
• visible,
• auxiliary,
• pure,
• inexpensive,
• nonmagnetic,
• neutral,
• precast,
• third,
• continuous,
• costly,
• higher,
• rare,
• inert,
• geographical,
• central,
• melting,
• functional,
• hazardous,
• repetitive,
• tubular,
• critical,
• optical,
• large,
• skeletal,
• mobile,
• corrosive,
• photoconductive,
• intermediate,
• linear,
• sensitive,
• distinct,
• ferromagnetic,
• toxic,
• divalent,
• crustal,
• magical,
• catalytic,
• covalent,
• lightweight,
• up,
• aerodynamic,
• interior,
• curved,
• concrete,
• geographic,
• interfering,
• architectural,
• dissolved,
• entire,
• graphical,
• missing,
• foreign,
• passive,
• heavier,
• oxidizable,
• monatomic,
• paramagnetic,
• wooden,
• light,
• geometric,
• brittle,
• complex,
• noxious,
• main,
• supporting,
• metalloid,
• expensive,
• softer,
• heterogeneous,
• crystalline,
• diffusing,
• digital,
• good,
• minor,
• executable,
• level,
• regulatory,
• slender,
• electrical,
• lighter,
• trivalent,
• key,
• black,
• inner,
• destructive,
• essential,
• refractory,
• harmful,
• atomic,
• magnetic,
• mechanical,
• number,
• elastic,
• consumable,
• nonmetal,
• photovoltaic,
• secondary,
• convenient,
• size,
• discrete,
• oversized,
• basic,
• moveable,
• electronegative,
• radioactive,
• harsh,
• promotional,
• primitive,
• biological,
• diatomic,
• reflective,
• additional,
• standard,
• semiconducting,
• monovalent,
• driving,
• movable,
• abrasive,
• major,
• special,
• conductive,
• moving,
• new,
• thermoelectric,
• original,
• simple,
• rigid,
• solid,
• antibacterial,
• complicated,
• drawn,
• abundant,

Simple categories matching covalent:

• semiconductor,
• oxide,
• material,
• nitride,
• metal,
• compound,
• carbide,
• substance,
• element,
• system,
• atom,
• chloride,
• crystal,
• solid,
• structure,