Ionic Compounds (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
How do ionic compounds form?
How do ionic compounds form?
Transfer of electrons from metal to non-metal
What are the charged particles formed in ionic bonding called?
What are the charged particles formed in ionic bonding called?
Ions
What is the overall charge of an ionic compound like NaCl?
What is the overall charge of an ionic compound like NaCl?
No charge
In NaCl, what does the sodium atom become after losing an electron?
In NaCl, what does the sodium atom become after losing an electron?
Positive sodium ion (Na⁺)
What holds an ionic compound together?
What holds an ionic compound together?
Strong electrostatic attraction
What is an ionic lattice?
What is an ionic lattice?
Giant structure of ions in regular pattern
What is a limitation of the ball and stick model of ionic lattices?
What is a limitation of the ball and stick model of ionic lattices?
Shows empty spaces that don't exist
Approximately how many ions are in a single grain of salt?
Approximately how many ions are in a single grain of salt?
ions
Why do ionic compounds have high melting points?
Why do ionic compounds have high melting points?
Strong electrostatic forces need energy
Why does MgO have a higher melting point than NaCl?
Why does MgO have a higher melting point than NaCl?
Mg²⁺ and O²⁻ have higher charges
Can ionic compounds conduct electricity when solid?
Can ionic compounds conduct electricity when solid?
No, ions are fixed in position
When can ionic compounds conduct electricity?
When can ionic compounds conduct electricity?
When melted or dissolved in water