Ionic Compounds (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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How ionic compounds form
How ionic compounds form
Transfer of electrons from metal to non-metal
What ions are
What ions are
Charged particles
Charge on Na ion in NaCl
Charge on Na ion in NaCl
(positive ion)
Charge on Cl ion in NaCl
Charge on Cl ion in NaCl
(negative ion)
Force holding ionic compound together
Force holding ionic compound together
Strong electrostatic attraction
Overall charge of ionic compound
Overall charge of ionic compound
No charge (positive & negative cancel out)
Structure of ionic compound
Structure of ionic compound
Giant ionic lattice in regular, repeating pattern
What ionic bonding is
What ionic bonding is
Electrostatic forces between oppositely charged ions
Why ionic compounds have high melting points
Why ionic compounds have high melting points
Strong electrostatic forces need lots of energy to overcome
Effect of higher ion charges on melting point
Effect of higher ion charges on melting point
Higher charges = stronger forces = higher melting point
When ionic compounds conduct electricity
When ionic compounds conduct electricity
When melted or dissolved (ions free to move)
Why ionic solids don't conduct electricity
Why ionic solids don't conduct electricity
Ions are fixed in position and cannot move
Properties of compound vs. elements forming it
Properties of compound vs. elements forming it
Completely different properties