Monovalent `Na^+`, `K^+` ions and divalent `Ca^(2+)` , `Mg^(2+)` ions are found in large proportions in biological fluids. What are the major roles of these Na and K ions in our body ?

Monovalent Na^+ , K^+ ions and divalent Ca^(2+) , Mg^(2+) ions are found in large proportions in biological fluids. Give the name of the metal present in Chloro phyll.

Monovalent Na^+ , K^+ ions and divalent Ca^(2+) , Mg^(2+) ions are found in large proportions in biological fluids. For making which parts of our body, calcium is mainly used?

Monovalent Na^+ , K^+ ions and divalent Ca^(2+) , Mg^(2+) ions are found in large proportions in biological fluids. In which part of our body are sodium and potassium ions prominently located?

A group of ions are given below: Na^+ , Al^3+ , O^2- , Ca^2+ , Mg^2+ , F^- , N^3- , Br^- a) Find the pair which is not isoelectronic. b) Arrange the above ions in the increasing order of size.

What is the coordinatiọn number of Oxide ion in sodium oxide '(Na_2 O)'