vimiy sutr kise khte he
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विमीय सूत्र की परिभाषा- किसी भौतिक व्युत्पन्न राशि का विमीय सूत्र वह व्यंजक होता है जो यह बताता है कि उस व्युत्पन्न राशि में कौन-कौन सी मूल राशियां किस किस प्रकार शामिल हैं।
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The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals. Although many characteristics are common throughout the group, the heavier metals such as Ca, Sr, Ba, and Ra are almost as reactive as the Group 1 Alkali Metals. All the elements in Group 2 have two electrons in their valence shells, giving them an oxidation state of +2.
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