An atom X has electronic configuration 2,8,7. It combines with Y having 1 electron in its outermost shell.
Write the formula of the compound formed.
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1
Answer:
X has 7 electrons in its outermost shell and Y has only one electron in its outermost shell so Y loses its one electron and X gains that electron to from an ionic bond. The formula of the compound would be XY.
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0
Answer:
the atom is chlorine
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Explanation:
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