Question

the alkali metal of period 3

Answer 1

dude...try http://www.google.de/search?q=periodensystem&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:de:unofficial&client=firefox-a#sclient=psy-ab&hl=de&client=firefox-a&hs=goX&rls=org.mozilla:de%3Aunofficial&source=hp&q=PSE&pbx=1&oq=PSE&aq=f&aqi=g4&aql=&gs_sm=e&gs_upl=4590l4836l0l5036l3l2l0l0l0l0l177l177l0.1l1l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=8d93dd8a8a05a261&biw=1680&bih=931

Answer 2

periodic system of the elements...should help with all your questions.

by the way, the answer is magnesium.

Answer 3

oops. no. sodium. my bad :/

Answer 4

isn't sodium