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Name all non-metals.
Non-metals are the elements which form negative ions by accepting or gaining electrons. • Non-metals usually have 4, 5, 6 or 7 electrons in their outermost shell. • Non-metals are those which lack all the metallic attributes. • They are good insulators of heat and electricity. • They are mostly gases and sometimes liquid. The nonmetal elements occupy the upper right-hand corner of the periodic table.
ATOMIC NUMBER SYMBOL ELEMENT 1 H Hydrogen 2 He Helium 6 C Carbon 7 N Nitrogen 8 O Oxygen 9 F Fluorine 10 Ne Neon 15 P Phosphorus 16 S Sulfur 17 Cl Chlorine 18 Ar Argon 34 Se Selenium 35 Br Bromine 36 Kr Krypton 53 I Iodine 54 Xe Xenon 85 At Astatine 86 Rn Radon 117 Ts Tennessine 118 Og Oganesson |