70以上 periodic 218058-Periodico el peruano
1 any length of time a period of three days;This is the PERIODIC TABLE Noble gas is stable Halogens and Alkali react aggressively Each period we'll see new outer shells While electrons are added moving to the right Iron is the 26th Then Cobalt, Nickel coins you get Copper, Zinc and Gallium Germanium and Arsenic Selenium and Bromine film While Krypton helps light up your room RubidiumThe Periodic Table app contains detailed chemical and physical information of all chemical elements Spice up your chemistry on Windows! International Year Of The Periodic Table Philip Harris Periodico el peruano