Year 11 C2 ionic compounds quiz

Potassium is in group 1. What is the charge of a potassium ion?

• +2

• -1

• +1

• -2

Calcium is in group 2. How does a calcium atom change when it forms an ion?

• It gains 2 electrons

• It loses 2 electrons

• It shares 2 electrons

Which of the following atomic structures represent a Negative ion?

• 9 Protons

  8 Neutrons

  9 electrons

• 12 protons

  14 neutrons

  12 electrons

• 12 protons

  12 neutrons

  10 electrons

• 9 protons

  10 neutrons

  10 electrons

7

What happens when sodium and chlorine atoms react to form sodium chloride?

• Outer electrons transfer from sodium atoms to chlorine atoms

• Outer electrons transfer from chlorine atoms to sodium atoms

• Sodium and chlorine atoms share pairs of outer electrons

• Both sodium and chlorine atoms lose electrons

Covalent bonds are strong. Which of the explanations below is correct

• Strong forces of attraction between molecules

• Strong forces of attraction between atoms

• Weak forces of attraction between nucleus and shared pair of electrons

• Strong forces of attraction between ions

Which statement below about ionic compounds is correct

• Ionic compounds have freely moving electrons so can conduct electricity

• Molten ionic compounds have freely moving ions so can conduct electricity

• Molten ionic compounds have freely moving electrons so can conduct electricity

• Solid ionic compounds can conduct electricity as they have freely moving ions.