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Select the element whose Lewis symbol is correct?
Select the element whose Lewis symbol is correct?1) He
2) Be
3) Pb
4) Li
5) S
Final answer:The correct Lewis symbol among the given elements is for Beryllium (Be), which has two valence electrons represented by two dots in its Lewis symbol. Hence the correct option would be option 2.Explanation:To determine the correct Lewis symbol for an element, we must consider its electron configuration and how many valence electrons it has. The Lewis symbol consists of the element's symbol surrounded by dots representing its valence electrons.He: 1s² (2 valence electrons)Li: 1s²2s¹ (1 valence electron)Be: 1s²2s² (2 valence electrons)Pb: [Xe]4f¹⁴5d¹⁰6s²6p² (4 valence electrons)S: [Ne]3s²3p⁴ (6 valence electrons)A correct Lewis symbol will show the number of valence electrons as dots around the element symbol. In this context, the element Be is the one with a correct Lewis symbol, depicted as the symbol for Beryllium (Be) surrounded by two dots, representing its two valence electrons in the 2s orbital....