→ Chemistry - Dot & Cross Diagram → Börja lära dig / Ladda ner MP3 Flashcards

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

Chemistry - Dot & Cross Diagram