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The least reactive elements are the noble gases (helium, neon, krypton, argon, xenon). They each have a complete outer electron shell (two electrons for helium, eight electrons in the outer shell of the other noble gases). Chemical reactions take place in ways that result in making outer electron shells more complete (or for transition state elements, it can also make inner shells more complete), so if the outer electron shell is already complete, there is no basis for a chemical reaction.
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The least active elements are the .?
Generally, the least reactive elements are the noble gases.
What is the least reactive groups on the periodic table?
Noble gases are least reactive because they have a full shell
Which group has the least reactive elements?
Nobel gases.
What elements has the least reactive metal?
magnesium (Mg)
What family is non reactive?
The noble gases are the least reactive among all chemical elements.
What are the elements in group 17 in order from least reactive and most reactive?
Group 17, also known as the halogens, consists of the elements fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). In order from least reactive to most reactive, the elements are iodine, bromine, chlorine, and fluorine, with astatine being the least reactive among them. Fluorine is the most reactive halogen due to its high electronegativity and small atomic size.
Which element is the least reactive in period 4?
Noble gasses are least reactive of all the elements. So the least reactive element in the period 4 is Krypton. It is a noble gas with an atomic number of 36.
What group of elements are the least reactive?
8th group-nobel gases
What elements is the least reactive Na Cl Rb Mg?
chlorine
What elements are least reactive on the periodic table?
the noble gases are the least reactive(thats group 18) followed by group 14
What is the placement of these elements from least reactive to most reactive nickel xenon and lithium?
The placement of the elements from least reactive to most reactive is xenon, nickel, and then lithium. Xenon is a noble gas and is generally unreactive, while nickel, a transition metal, has moderate reactivity. Lithium, an alkali metal, is highly reactive, especially with water and air.
Why were least reactive elements discovered before more reactive elements?
The simple reason is that least reactive elements are mostly found in their native state while reactive elements are found in combined state (in form of their compounds). It is easier to extract any element in it's native or elementary form. Such elements can be easily separated from their ore. They are separated by using physical processes. Reactive elements need to be extracted from their minerals through chemical processes which are more expensive and tedious.
