Useful Information About Chemistry | Lecturer Chemistry Important Questions | PPSC | FPSC | PAEC | NTS | SPSC | BPSC | AJKPSC | Ustad Jugadi | Ustaad Jugadi
✓ Smallest Cation is Hydrogen Ion (H+).
✓ Largest Cation is Cesium Ion (Cs+).
✓ Solid with highest density is Iridium (Ir).
✓ Liquid with highest density is Mercury (Hg).
✓ Elements named after countries are (Ru, Ge, Po, Am).
✓ The most electronegative element is Fluorine (F).
✓ The most abundant element on earth is Oxygen.
✓ The most abundant element in earth crust is Aluminum (Al).
✓ Liquid metal is Mercury (Hg).
✓ Lustrous non-metal is Iodine.
✓ Hardest among non-metals is Diamond.
✓ Soft metals are Sodium (Na) & Potassium (K).
✓ The best ductile metals are gold (Au) & Silver (Ag).
✓ The best conductor metal is Silver (Ag).
✓ The most poisonous metal is Pu.
✓ Element with maximum number of isotopes is Ag.
✓ The most electropositive metals is Cesium.
✓ Liquid non-metal is Bromine.
✓ Metal kept in paraffin wax is Lithium.
✓ Coinage metals are Au, Ag, Cu, Al.