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Chemical Bonding And Molecular Structure

Question

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Define vander Waal's forces.

Solution

They may be defined as very weak forces of attraction between non-polar molecules which arise from the moment of electrons in atoms and molecules.

Some More Questions From Chemical Bonding and Molecular Structure Chapter

What is electrovalency?

What bond is present in MgCl₂ molecules?

Write Lewis dot symbols for atoms of the elements Mg, Na, B, O, N, Br.

Draw the Lewis structure for the ionic compound by aluminium and fluorine.

Two elements A and B have the electronic configuration as:
A = 1s²2s²2p⁶3s² and B = 1s²2s²2p⁵Write 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?

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