Give the number of electrons which occupy the bonding molecular orbital in H2+ H2 and He2.
(i) The number of electrons in bonding molecular orbital of H2+ is 1.
(ii) The number of electrons in bonding molecular orbital of H is 2.
(iii) The number of electrons in bonding molecular orbital of He2 is 2.
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.
Out of Na and K, which will form a more stable ionic bond?
Which will have a greater lattice enthalpy: NaCl or MgO?
Is a covalent molecule always formed between two similar atoms?
Why sodium chloride is a solid whereas carbon tetrachloride is a liquid?
Mock Test Series
