Metallic character increases down the group and decreases along the period.
So, the correct option is (D): \(Si < Be < Mg < K\).
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.
Match List I with List II
Choose the correct answer from the options given below:
A body of mass 1000 kg is moving horizontally with a velocity of 6 m/s. If 200 kg extra mass is added, the final velocity (in m/s) is: