Web7 aug. 2024 · The least reactive element is argon. Argon is a noble gas and is not reactive with other elements. The other elements in the periodic table are more reactive than argon. The most reactive elements are the alkali metals, followed by the alkaline earth metals, the transition metals, the post-transition metals, and the metalloids.
P, Q and R are 3 elements which undergo chemical reactions
Web19 jun. 2024 · Reactivity is a measure of how easily an element will combine with other elements to form compounds. Some elements are unreactive and need energy putting in others will react spontaneously and easily. The size of the nucleus determines the chemical reactivity of the element due to its ability to hold onto electrons and attract electrons. WebA 1.4 ± 0.2 ‰ to 3.1 ± 0.6 ‰ lighter TCE than PCE at the beginning of the reaction indicated the presence of an inverse secondary effect or at least a difference of -10.6 ± 1 ‰ to -15.9 ± 2.8 ‰ between primary and secondary Cl isotopic effects. In order reliably predict a chlorinated ethenes plume fate based on a modelling approach considering isotopic … small crow paintings etsy
Periodic Classification of Elements Class 10 Science Important …
Web19 jun. 2024 · Reactivity is a measure of how easily an element will combine with other elements to form compounds. Some elements are unreactive and need energy putting … WebAnswer and Explanation: 1. Become a Study.com member to unlock this answer! Create your account. The least reactive non-metal is helium. Helium is a noble gas at the top of the noble gas family, which is group 18. The two electrons … Web18 nov. 2024 · The elements in period 2 are metal (lithium,beryllium)and non metal (boron,carbon,oxygen,fluorine. neon). electropositive character increase down the group … small crown vector