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Frage		Antworten
What does a dot and cross diagram show? Lernen beginnen		The arrangement and transfer of outer-shell electrons.
Why are brackets used around ions in dot and cross diagrams? Lernen beginnen		To show they are charged ions.
Explain how sodium chloride forms. Lernen beginnen		Sodium transfers one electron to chlorine. Sodium becomes Na⁺ and chlorine becomes Cl⁻. The oppositely charged ions attract, forming an ionic bond.
Explain why magnesium forms Mg²⁺ ions. Lernen beginnen		Magnesium loses two electrons to achieve a full outer shell.
What does each line in a displayed formula represent? Lernen beginnen		One shared pair of electrons.
What does a displayed formula show? Lernen beginnen		Atoms and covalent bonds as lines.

Chemistry - Dot & Cross Diagram