which group of elements are highly reactive because they have incomplete outer shells of electrons?\nnoble…
which group of elements are highly reactive because they have incomplete outer shells of electrons?\nnoble metals such as gold\nalkali metals and halogens\nnoble gases such as neon
Answer
Brief Explanations:
Alkali metals have 1 valence - electron and halogens have 7 valence - electrons in their outer shells, making them highly reactive to achieve a stable electron configuration. Noble metals like gold are less reactive, and noble gases have full outer shells and are inert.
Answer:
alkali metals and halogens