CBSE Class 11-science Answered
Generally the colour of flame of alkaline metals are due to the reason that electrons are excited to higher energy levels and when they drop back to the ground state, energy is emitted in the form of visible light. Since the electrons in beryllium and magnesium are too strongly bound it cannot get excited by flame. Hence Beryllium and magnesium do not give color to flame.
The s-Block ElementsThis video gives a general introduction to Group 2 elements, explains the e...
The s-Block ElementsThis video explains ionisation enthalpy and physical properties of Group 2 ...
The s-Block ElementsThis video contains practice questions on Group 2 elements of the s-block.