That means they break easily when force is applied on them. Hence they are poor conductors of heat and electricity. Nonmetals do not allow heat and electricity to pass through them. #3 Poor conductor of heat and electricity ![]() Nonmetals are generally non lustrous but few solid nonmetals have shiny lustrous surface (For example: Iodine have a lustrous surface) Rest of the nonmetals are solids at room temperature.Physical properties of nonmetalsĪt room temperature, nonmetals are found in solid state, liquid state as well as gaseous state. Let’s get started with physical properties. Nonmetals have exactly the opposite characteristics that of the metals. Well, now I’ll discuss the physical and chemical properties of nonmetals. Where are nonmetals on the periodic table? (with images) Properties of nonmetals on the periodic table Where are halogens on the periodic table?(with images)Ģ). Hence noble gases are chemically inert)ġ). So they do not participate in any chemical reaction. ( Note: Noble gases have even smaller atomic size compared to halogens, but they have complete octet. Thus fluorine is highly reactive nonmetal. So it has highest electronegativity (it has maximum tendency to attract the electrons pair)Īnd because of this, fluorine has a highest tendency to react with any other element to form a compound.Įven fluorine reacts with noble gas like xenon, and forms compounds like XeF4 (Xenon tetrafluoride) and XeF6 (Xenon hexafluoride) In other words, Fluorine is at the top of the halogen group and it has less atomic size plus it needs only one electron to complete the octet. The short answer: Fluorine is a highly reactive nonmetal on the entire Periodic table.Īctually the halogens are the most reactive nonmetals, but we know that as we move down the group, the electronegativity decreases. Most reactive nonmetal on the Periodic table Keep reading… more important topics are on the way. ![]() Atomic number Symbol Name of 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 Here is a complete list of all the 18 nonmetals on the Periodic table.
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