Ionic bonding

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Sodium fluoride, $N a F$ , is an ionic compound.

It contains sodium cations and fluoride anions.

The electronic configurations of a sodium atom and of a fluorine atom are shown in Figure 1.

Figure 1: Electronic configurations of a sodium atom and a fluorine atom. The sodium (Na) atom has 11 electrons shown as crosses: 2 in the first shell, 8 in the second shell, and 1 in the outer shell. The fluorine (F) atom has 9 electrons shown as dots: 2 in the first shell and 7 in the outer shell.

Complete Figure 2 to show the electronic configurations and charges of the ions in sodium fluoride. Figure 2: Incomplete diagrams for the sodium ion and fluoride ion. In both diagrams, square brackets are drawn around empty shells where electrons need to be added. The charge space at the top right of each bracket is left blank.

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Ionic bonding Questions

Practise Edexcel GCSE Chemistry Ionic bonding with exam-style questions for Foundation and Higher tier. 42 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.