C : 6
Carbon is a chemical element with the symbol C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds.
I : 53
Iodine is a chemical element with symbol I .It is heaviest of the stable halogens, it exists as a semi-lustrous, non-metallic solid at standard conditions that melts to form a deep violet liquid at 114 degrees Celsius, and boils to a violet gas at 184 degrees Celsius.
Li : 3
Lithium is a chemical element with the symbol Li .It is a soft, silvery-white alkali metal.Lithium is used to treat mania that is part of bipolar disorder (manic-depressive illness). It is also used on a daily basis to reduce the frequency and severity of manic episodes
O : 8
Oxygen is the chemical element with the symbol O. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
N : 7
Nitrogen is the chemical element with the symbol N. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772.
Rb : 37
Rubidium is the chemical element with the symbol Rb. It is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity.It cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the metal catching fire
HOPE THIS HELPS :)