Allotropy of group 15 p block elements

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 Allotropy of Group 15 elements :

All the elements (except Bi) of this group show allotropy. Solid nitrogen exists in two allotropic forms, i.e., Alfa-nitrogen with cubic crystalline structure and Bita-nitrogen with hexagonal crystalline structure.
 Phosphorus exists in a number of allotropic forms, such as white,red,scarlet, Alfa-black, Bita-black and violet. Arsenic exists in three allotropic form, i.e., grey, yellow and black. Antimony exists in three allotropic forms, i.e., yellow,black and explosive.

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Siemens Ozoniser how Siemens Ozoniser work

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Rutile structure

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Paramagnetic substances

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