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Group 7A (17) elements can gain one electron to attain a noble gas electron configuration. In combination with metal atoms that gain one or more valence electrons to achieve octet structure, they form ionic compounds. Group 8A (18) elements already have an octet of valence electrons (two for helium), so they do not lose or gain electrons and are not normally found in compounds. True / False.
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Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
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Group 7A (17) elements can gain one electron to attain a noble gas electron configuration. In combin...
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