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What are ions ?...

What are ions ?

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What is an ion ?

What is an ion ? Give one example .

What are the ions present in these compounds? Na_(2)O and MgO .

(a) What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions. (b) The valencies (or charges) of some of the ions of are given below : Using this information, write down the formulae of the following compunds : (i) Sodium phosphate , (ii) Ammonium sulphate (iii) Calcium hydroxide , (iv) Lead bromide

(a). What is an ion? Explain with examples (b). What iis the nature of charge on (i). A cation and (ii) and anion? (c) Name the cation and anion present in MgCl_(2) also write their symbols.

What ions, must be present in a solution used for electroplating a particular metal?

What are isoelectronic ions ? Account for the decrease in size of the following isoelectronic ions : O ^(2-) - gt F ^(-) gt Na ^(+) gt Mg ^(2+)

What happens to sulphide ion concentration when HCl is added to H_(2)S solution?