Question

metal like potassium and sodium react violently with cold water meaning in hindi​

Answer 1

Answer:

they are highly reactive metals

Explanation:

potassium or sodium air and water ke contact mai aate hi fire (aag) pakad lete hai

Answer 2

Answer:

They are highly Reactive Metal...

The law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights...