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Chemical Bonding and Molecular Structure
Explain the formation of a chemical bond.
The attractive force which holds various constituents (atoms,ions, etc.)together in different chemical species is called a chemical bond.
Molecules having two identical atoms like H2 and O2 Cl2 N2 are called as homonuclear diatomic molecules.
Molecules containing two different atoms like CO, HCl, NO, HBr etc, are called as heteronuclear diatomic molecules.
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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.
Out of Na and K, which will form a more stable ionic bond?
Which will have a greater lattice enthalpy: NaCl or MgO?
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