Question

which group contains highly reactive metals with two valence electrons? a alkali metals b alkaline earth metals c transition metals d halogens e noble gases

Explanation:

Alkali metals have 1 valence - electron. Alkaline earth metals are highly reactive metals with 2 valence - electrons. Transition metals have variable valence - electrons. Halogens are non - metals with 7 valence - electrons. Noble gases are non - reactive with a full valence shell.

Answer:

B. Alkaline Earth Metals