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НАЧАЛО
1А ГРУПА
2А ГРУПА
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Елементи от групата
Калиев карбонат (варовик) и метален калций
Барий и стронций
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![calcij-1[1].jpg](https://static.wixstatic.com/media/c110c4_649fb2ce22d14fda84eec913625d4bef~mv2.jpg/v1/fill/w_695,h_362,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/calcij-1%5B1%5D.jpg)
![barij_radij-1[1].jpg](https://static.wixstatic.com/media/c110c4_42accd53f62a49a49fed57a071b61ce1~mv2.jpg/v1/fill/w_855,h_266,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/barij_radij-1%5B1%5D.jpg)
