Which of the following ions perform important biological functions in maintenance of the ion balance and nerve impulse conduction?

Which of the following ions perform important biological functions in

1.	Which of the following ions perform important biological functions in maintenance of the ion balance and nerve impulse conduction?
Answer» `Li^(+) RB^(+)` `Na^(+) K^(+)` `CS^(+) Fr^(+)` `Rb^(+) Cs^(+)` Answer :B