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Sodium reacts with oxygen to produce the ionic compound sodium oxide. Oxygen is a Group 6 element. Draw a dot and cross diagram to show what happens when atoms of sodium and oxygen react to produce sodium oxide.
Accepted Answer
Sodium (Na) is in Group 1 and has 1 valence electron. Oxygen (O) is in Group 6 and has 6 valence electrons. To form sodium oxide (Na₂O), two sodium atoms each donate one electron to an oxygen atom, forming an ionic bond. The dot and cross diagram would show:
Two sodium atoms with a single dot representing their valence electron.
One oxygen atom with six crosses representing its valence electrons.
The two dots from the sodium atoms would combine with two of the crosses from the oxygen atom, forming two Na⁺ ions and one O²⁻ ion. The ionic bond would then form between the oppositely charged ions.
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