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Q1
Figure 2 shows what happens to the electrons in the outer shells
when a sodium atom reacts with a fluorine atom.
The dots (•) and crosses (×) represent electrons.
Use Figure 2 to help you answer this question.
Describe, as fully as you can, what happens when sodium reacts
with fluorine to produce sodium fluoride.
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(4)
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Sodium atom loses one electron.
Fluorine atom gains one electron.
Ions are formed.
They form an ionic bond.

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