→ Chemistry - Dot & Cross Diagram → Rozpocznij Naukę / Ściągnij Fiszki MP3

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

Chemistry - Dot & Cross Diagram