Ionic Compounds (Edexcel GCSE Chemistry): Quizzes

By electron transfer from metal to non-metal

One electron

A positive sodium ion ($Na^+$)

No charge

A giant structure in regular pattern

$1.2 \times 10^{18}$ ions

Forces act in all directions, not just along sticks

Strong electrostatic forces

Strong ionic bonds need much energy

$Mg^{2+}$ & $O^{2-}$ bonds stronger than $Na^+$ & $Cl^-$

When melted or dissolved

Ions held in fixed positions