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Chemical Bonding and Molecular Structure
Although geometries of NH3 and H2O molecules are distorted tetrahedral, the bond angle in water is less than that of ammonia. Discuss.
In NH3, there are three bond pairs and one lone pair on N-atom. There is only one lone pair on N-atom to repel the bond pairs. In H2O, there are two bond pairs and two lone pairs on O-atom. There are two lone pairs on O-atom to repel the bond pairs. Hence, the repulsions on bond pairs are greater in H2O than in NH3 and hence the bond angle is less.
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Why two helium atoms do not combine to form He2?
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?
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