Which two groups of elements in the periodic table are the most reactive?(1 point) Responses noble gases and alkali metals noble gases and alkali metals halogens and noble gases halogens and noble gases alkali metals and halogens alkali metals and halogens alkaline earth metals and halogens
alkali metals and halogens
The two groups of elements that are the most reactive in the periodic table are alkali metals and halogens.
The two groups of elements in the periodic table that are most reactive are alkali metals (Group 1) and halogens (Group 17). Alkali metals, such as lithium, sodium, and potassium, are highly reactive because they have a single valence electron that is easily lost to form a positive ion. This tendency to lose electrons makes them highly reactive with water and other substances.
Halogens, such as fluorine, chlorine, and bromine, are also highly reactive because they have seven valence electrons and are one electron short of a stable electron configuration. They tend to gain one electron to achieve a more stable configuration and form negatively charged ions. This makes them highly reactive with alkali metals and other elements.
To find the answer to this question, you can refer to the periodic table. Group 1 elements are the alkali metals, and Group 17 elements are the halogens. By understanding the characteristics and properties of these groups, as described above, you can determine that alkali metals and halogens are the two most reactive groups of elements in the periodic table.