Potassium

(kalium). K Praseodymium,.. Pr 143-5 39-H Rhodium,.... Rh 103.0 85-5 Rubidium Rb Ru 101.6 Ruthenium,... OF CHEMIC ELEMENTS.— Continued. u > u J o Where and how Name. n S Found. > 0 « Samarium,.. Sm In samarskite, cerite, 150 0 Ill and other rare minerals. Scandium,.. Sc III In gadolinite and other IV VI rare minerals. Selenium,.. 28.4 II or Mainly in sulphur as an Se 4-5 2170 C.; 4250 F. impurity. 44.0 Silicon Ag o-97 Si 10.5 Above 8oo° C. In quartz (SiC^). Most 79.0 abundant element after 107.9 2-5 15000 F. oxygen. ch292.xhtml s 256