Question

Which two groups of elements in the periodic table are the most reactive ugly metals and halogens halogens and noble gases noble gases and alkali metals alkaline alkaline earth materials and holidays

Answer 1

The two groups of elements in the periodic table that are the most reactive are:

1) Alkali metals: These are found in Group 1 of the periodic table and include elements such as lithium, sodium, and potassium. They are highly reactive because they have only one electron in their outermost shell, which they can easily lose to form positive ions.

2) Halogens: These are found in Group 17 of the periodic table and include elements such as fluorine, chlorine, and bromine. They are highly reactive because they have seven electrons in their outermost shell and can easily gain one electron to fill their shell and form negative ions.

Therefore, the correct answer is "alkali metals and halogens."