Chemical Properties and Periodicity ALKALI METALS: Physically they are solid, soft, malleable, conductors and have low density (large atoms) and low melting.
Reactivity SeriesReactivity Series Potassium Sodium Lithium Calcium Magnesium Aluminum Zinc Iron Tin Lead Copper Silver Gold Platinum Most Reactive Least.
Abdulaziz Khalid Al- Kuwari 8C
