Symbol: K
Atomic number: 19
Atomic weight: 39.0983
Classification: Alkali metal
Phase at room temperature: Solid
Density- 0.86 grams per cubic cm.
Melting point:63.38° C or 146 .08° F
Boiling point:759°C or 1398° F
Malleability: High
Ductility: High
Reactivity with water: It reacts violently with water and gives off hydrogen gas
Reactivity: It reacts readily with all acids and with all non metals.
Flammability: Easily ignited by gentle heating and will burn vigorously with a characteristic flame of lilac color.
