Rubidium

Rubidium ek chemical element hae, jiske symbol Rb, atomic number 37 aur atomic mass 85.47 hae....

jawe hae. Alkali metals hae: Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), aur Francium (Fr). Lithium sab se kamti reactive, aur...

207(1) 7 6 Rhodium Rh 45 102.905 50(2) 9 5 Roentgenium Rg 111 [272] 11 7 Rubidium Rb 37 85.4678(3) 1 5 Ruthenium Ru 44 101.07(2) 8 5 Rutherfordium Rf 104...