The electronic configuration of two elements A and B are 2,8,7 and 2,8,8,2 respectively. Write the atomic number of these elements. what will be the formula of the compound formed and the nature of bond between them when these two elements chemically combine together.
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the one for 2,8,7 the atmoic number is 17, it is chlorine and 2,8,8,2 the atomic number is 20 and this is calcium, when you combine them it will be calcuim chloride
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