Give the reason for the following: Bond order in N2 is 3 whereas it is 2.5 in NO ?
Total number of electrons in N2 = 7 + 7 = 14
The electronic configuration is:
Total number of electrons in NO = 7 + 8 = 15. The 15th electron enters into 
Now Nb = 8 and Na = 3
What are 'Lewis structures'?
Name the conditions for the formation of an ionic bond between two atoms.
What is crystal lattice?
What is electrovalency?
What bond is present in MgCl2 molecules?
Two elements A and B have the electronic configuration as:
A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.
What type of bonding would you expect between:
(i) a metal and a non-metal
(ii) a non-metal and another non-metal?
Give reasons in one or two sentences for the observation that in their compounds non-metals form anions and not cations.
Mock Test Series
