Periodic Table of Elements
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Reactive Nonmetals

7 elements

Alkali Metals 6 Alkaline Earth Metals 6 Transition Metals 38 Post-transition Metals 11 Metalloids 7 Reactive Nonmetals 7 Halogens 6 Noble Gases 7 Lanthanides 15 Actinides 15
1 H Hydrogen 1.008 6 C Carbon 12.011 7 N Nitrogen 14.007 8 O Oxygen 15.999 15 P Phosphorus 30.974 16 S Sulfur 32.07 34 Se Selenium 78.97