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 alkali metals and halogens alkali metals and halogens halogens and noble gases halogens and noble gases alkaline earth metals and halogens
alkali metals and halogens
The two groups of elements in the periodic table that are the most reactive are alkali metals and halogens.
The two groups of elements in the periodic table that are the most reactive are alkali metals and halogens. To determine this, you need to look at the elements' position in the periodic table and consider their electron configurations.
Alkali metals are found in Group 1 of the periodic table, which includes elements such as lithium (Li), sodium (Na), and potassium (K). They are highly reactive because they have one valence electron, which they readily lose to form a positive ion. This gives them an strong tendency to react with other elements, especially elements that can accept electrons.
Halogens, on the other hand, are found in Group 17 of the periodic table and include elements like fluorine (F), chlorine (Cl), and bromine (Br). Halogens have seven valence electrons and tend to gain one electron to complete their outermost energy level, resulting in the formation of a negative ion. They are highly reactive because they have a strong attraction for electrons from other elements.
When alkali metals and halogens come into contact with each other, they readily react to form ionic compounds. The alkali metal donates its one valence electron to the halogen, resulting in the formation of a stable ionic bond.
Therefore, the most reactive groups in the periodic table are alkali metals (Group 1) and halogens (Group 17).