[{"question":"Medzi s2<\/sup> prvky nepatr\u00ed","answers":["Li","Mg","Be","Ba"],"correct":"Li","order":"1"},{"question":"s2<\/sup> - prvky maj\u00fa vo svojej valen\u010dnej sf\u00e9re","answers":["1 elektr\u00f3n","2 elektr\u00f3ny","3 elektr\u00f3ny","4 elektr\u00f3ny"],"correct":"2 elektr\u00f3ny","order":"2"},{"question":"Prvky Ca, Sr, Ba, Ra naz\u00fdvame aj","answers":["alkalick\u00e9 kovy","alkaloidy","kovy alkalick\u00fdch zem\u00edn","nukleov\u00e9 kyseliny"],"correct":"kovy alkalick\u00fdch zem\u00edn","order":"3"},{"question":"Ozna\u010dte spr\u00e1vne tvrdenie: s2<\/sup> prvky","answers":["maj\u00fa v\u00e4\u010d\u0161ie at\u00f3mov\u00e9 polomery ako s1<\/sup> prvky","maj\u00fa tri valen\u010dn\u00e9 elektr\u00f3ny","v zl\u00fa\u010denin\u00e1ch maj\u00fa v\u017edy oxida\u010dn\u00e9 \u010d\u00edslo +II","maj\u00fa ni\u017e\u0161iu teplotu topenia ako alkalick\u00e9 kovy"],"correct":"v zl\u00fa\u010denin\u00e1ch maj\u00fa v\u017edy oxida\u010dn\u00e9 \u010d\u00edslo +II","order":"4"},{"question":"Ozna\u010dte spr\u00e1vne tvrdenie: s2<\/sup> prvky","answers":["s\u00fa m\u00e1lo reakt\u00edvne","patria medzi u\u0161\u013eachtil\u00e9 kovy","tvoria preva\u017ene i\u00f3nov\u00e9 v\u00e4zby","nie s\u00fa krehk\u00e9"],"correct":"tvoria preva\u017ene i\u00f3nov\u00e9 v\u00e4zby","order":"5"},{"question":"Latinsk\u00fd n\u00e1zov v\u00e1pnika je","answers":["calium","colcium","calicilum","calcium"],"correct":"calcium","order":"6"},{"question":"S\u00fa\u010das\u0165ou magnezitu je","answers":["Mg","Ca","Sr","Ra"],"correct":"Mg","order":"7"},{"question":"Latinsk\u00fd n\u00e1zov hor\u010d\u00edka je","answers":["magnum","magnesium","magesium","magnasium"],"correct":"magnesium","order":"8"},{"question":"Uve\u010fte spr\u00e1vnu elektr\u00f3nov\u00fa konfigur\u00e1ciu ber\u00fdlia","answers":["[He] 2s2<\/sup>","[He] 2s","[He] 3s2<\/sup>","[He] 1s2<\/sup>"],"correct":"[He] 2s2<\/sup>","order":"9"},{"question":"Dopl\u0148te chemick\u00fa rovnicu: CaCl2<\/sub> + 2 Na \u2192","answers":["NaCl + Ca","2 NaCl + Ca","2 NaCl + 2Ca","NaCl +2 Ca"],"correct":"2 NaCl + Ca","order":"10"}]