→ Chemistry - Dot & Cross Diagram → Start Learning / Flashcards Téléchargement MP3

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

Chemistry - Dot & Cross Diagram