Question

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write the symbols of the first three elements that have six electrons in their outermost energy level.
element 1:
element 2:
element 3:
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Explanation:

Elements with six electrons in their outermost energy level are in group 16 of the periodic table. The first three elements in this group are oxygen (O), sulfur (S), and selenium (Se).

Answer:

element 1: O
element 2: S
element 3: Se