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A LEVEL Mr Cook > Ionic Bonding > Flashcards

Ionic Bonding Flashcards

1
Q

3 things involved in ionic bonding

A

Between metal and non metal
Forms giant ionic lattice
Involves transfer of electrons

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2
Q

What 4 things must be on an ionic bonding diagram

A

Brackets
Number of molecules
charges
dots and crosses

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3
Q

Whats holds two ions together in ionic bonding

A

Electrostatic attraction between positive and negative charges

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4
Q

what does 6:6 coordinated mean in an ionic lattice (NaCl)

A

to gain maximums stability, each Na ion must be surrounded by 6 Cl ions. IF THEY TOUCH, YOU INTRODUCE INTERRUPTIONS IN THE CRYSTAL, AND LIKE IONS START REPELLING

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5
Q

What are the 3 physical properties of NaCl,and explain them

A

High melting point- high electrostatic attraction between ions.
Conducts electricity when molten- ions are free to move
Brittle- when bent, like ions are forced next to each other, so they repel and it crumbles.

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6
Q

Why is Al203 stronger than NaCl?

A

Bigger difference in charge between Al3+ and O2- (5) than Na+ and Cl- (2)

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A LEVEL Mr Cook (26 decks)

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