Non-metals

=Non-Metals By Aakash Sham=

At room temperature some nonmetals are gaseous, some are liquid, and some are solid.
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Elements that Make up the Non-metals

 * 1) Six Noble Gases (He, Ne, Ar, Kr, Xn, Rn)
 * 2) All the diatomic molecules (H,O,N,Cl,Br,I,F)
 * 3) Four Solid Elements (C, P, S, Se)

Characteristics of Non-metals

 * poor conductors of heat and electricity
 * in solid form are dull and brittle
 * lower densities than metals
 * higher electronegativity than metals
 * lower melting and boiling points than metals
 * not ductile or malleable
 * form acidic oxides instead of basic oxides as a metal would

Liquid Bromine


http://www.indiamart.com/sujaychemicals/pcat-gifs/products-small/liquid-20bromine_10438902.jpg

Liquid Nitrogen



http://www.chemistryexplained.com/images/chfa_03_img0622.jpg

Iodine


http://www.mii.org/Minerals/Minpics1/Sulfur.jpg

Selenium


http://mineral.galleries.com/minerals/elements/selenium/selenium.jpg

Phosphorus



http://www.webelements.com/_media/elements/element-pics-theo/15_P_2.jpg

Sources: -The AP Chemistry book -Citation under photos -http://www.en.wikipedia.org/wiki/Nonmetals