The bond length of HCl bond is 136 pm. Covalent radius of hydrogen atom is 37 pm. What is the covalent radius of chlorine atom?
Covalent radius of chlorine atom
= 136 pm - 37 pm = 99 pm.
What are the advantages of periodic classification of elements?
(i) The classification simplifies the learning of chemistry.
(ii) Periodic table explains clearly why elements in a group display similar properties. The periodic table serves as a guide for scientific investigations.
Which radius, vander Waal's or covalent, is larger for an atom?
How is the atomic radius of an element actually expressed?