1.

If the atomic number of some elemetns in the modern periodic table are 8,7,11,12,13 and 9 what type of ions do they form? Arrange the ions in the increasing order of their size and justify

Answer»

Solution :(i) identification of the number of valece electrons in eahc element
(ii) tendency of an atom of an element to lose or gain based on numbr of VALENCE electrons
(iii) TYPE of ions formed
(iv) variation of SIZE of an ion with charge


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