→ Chemistry - Dot & Cross Diagram → Empezar lección / Descargar tarjetas en MP3

término		definición
What does a dot and cross diagram show? empezar lección		The arrangement and transfer of outer-shell electrons.
Why are brackets used around ions in dot and cross diagrams? empezar lección		To show they are charged ions.
Explain how sodium chloride forms. empezar lección		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. empezar lección		Magnesium loses two electrons to achieve a full outer shell.
What does each line in a displayed formula represent? empezar lección		One shared pair of electrons.
What does a displayed formula show? empezar lección		Atoms and covalent bonds as lines.

Chemistry - Dot & Cross Diagram