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2.3 Ionic bonding

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Question 24

A mineral sample contains an ionic compound formed from two elements, represented by the letters R and T.

The table shows the electronic configuration of an atom of each element.

element	electronic configuration of atom
R	$2, 8, 2$
T	$2, 7$

Explain why the ions formed from R and T have exactly the same electronic configuration.

[3]

Give the formula of the ionic compound formed from R and T.

[1]

Markscheme

2.3 Ionic bonding Questions

GCSE
Chemistry
2.3 Ionic bonding

119 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

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