関連ワード:
elements in group 2 are called elements in group 2 are called alkaline earth metals elements in group 2 are all called alkaline earth metals elements in group iia 2 are called elements found in group 2 are called the elements in group 2 are called the ___ metals elements in group 2 are all called elements in group 2 are known as elements in group 2 are known as alkaline metals elements in group 2 are known as alkali metals responses
