The non-metallic element present in the mineral cryolite is:
Most non-metallic among F, Cl, Br, I, and At is:
Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy ) is (a) F > Cl > Br > I (b) F < Cl < Br < I (c) F < Cl > Br > I (d) F < Cl < Br < I