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Chemical Bonding And Molecular Structure
Question
What are 'Lewis structures'?
Solution
Lewis Structures are visual representations of the bonds between atoms and illustrate the lone pairs of electrons in molecules. It represents the valence electrons of an atom by dots or crosses around the symbol of the atom is called Lewis structure. For example valence electron of carbon is 4 thus, Lewis structure is,
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Some More Questions From Chemical Bonding and Molecular Structure Chapter
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 = 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
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