Among the following the maximum covalent character is shown by the compound
(1)MgCl2
(2)FeCl2
(3)SnCl2
(4) AlCl3
According to Fajans rule, cation with greater charge and smaller size favours covalency.
How many elements are present in the group of the 18th Modem Periodic Table?
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........... is not a sub atomic particle of an atom.
......... is a deliquescent compound.
The mass number of an isotope of an element is 298. If its nucleus has 189 neutrons, what is its atomic number?
Constantan is alloyed from ...... metals.
Give an example of a salt which gives an aqueous solution of pH less than 7.
The atoms of Germanium, Arsenic, Selenium and Bromine contain ...... shells.
The electronic dot and cross structure of ethene is ............
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