Which of the following electronic configuration in the outermost shell is characterstic of alkali metals?

Which of the following electronic configuration in the outermost shell is characteristic of alkali metals?

Which of the following electronic confirgration in the outermost shell is characteristic of alkali metals?

Which of the following electronic configuration in the outermost two shells is characteristic of the alkaline earth metals?

Which of the following electronic configuration in the outermost two shells is characteristic of the alkaline earth metals?

Which of the following electronic configuration in the outermost two shells is characteristic of the alkaline earth metals?

Which of the following electronic configurations in the outermost two subshells is characteristic of the alkali metals ?

Give the electronic configuration of the outermost shell of lanthanides.