Question

Identify the elements with the following property and arrange them in increasing order of their activity
(a)An element which is soft and reactive metal
(b)The metal which is an important constituent of limestone
(c)The metal which exists in liquid state at room temperature.​

Answer 1

$a)potassium \\ b)calcium \\ c)mercury \\ these \: are \: your \: answer \: \\ lncreasing \: order \\ mercury \\ calcium \\ potassium$