Question

study the periodic table.
which group of elements is known for having the highest reactivity?
noble gases
alkali metals
transition metals
alkaline earth metals

Explanation:

To determine the most reactive group, we analyze each option:

• Noble gases are inert (stable electron configuration, low reactivity).
• Alkali metals (Group 1) have 1 valence electron, which they readily lose, making them highly reactive (most reactive among these groups).
• Transition metals have moderate reactivity (variable valence, less reactive than alkali metals).
• Alkaline earth metals (Group 2) have 2 valence electrons; they are reactive but less so than alkali metals (losing 1 electron is easier than losing 2).

Answer:

B. alkali metals