MaterialsAlkali Metals ManufacturingET.org / July 31, 2011 Group 1 Period 2 3 Li 3 11 Na 4 19 K 5 37 Rb 6 55 Cs 7 87Fr […]
MaterialsMetals ManufacturingET.org / July 31, 2011 Some metal pieces Metals Alkali metals Lithium, Sodium, Potassium Rubidium, Caesium, Francium Alkaline earth metals Beryllium, Magnesium, Calcium Strontium,
