Quiz on Valency, Bonding and Chemical Equations

Ionic Bonding is the electrostatic force of attraction between:

• Two non-metals

• A metal ion and a non-metal ion

• Molecules of water

• Protons and neutrons in the nucleus

Fluorine is in Group 7. It has seven electrons on its outer shell. What is its valency?

• 7

• 2

• 1

• 5

What type of bonding occurs between Magnesium metal and Oxygen gas?

• Ionic Bonding

• Hydrogen Bonding

• Magnetic Forces

• Covalent Bonding

When a metal bonds to a non-metal, what happens to its outermost or valence electrons?

• It will share them with Hydrogen

• It will lose them to become positively charged

• It will gain more to become negatively charged

• It will dissolve in water to form a solution

Which of the following are ions?

• Ca²⁺

• Cl^-

• CO₃^2-

• All of the above

What is the formula for Magnesium Fluoride?

• Mg₂F

• 2Mg₂F

• MgF₂

• MgF₃

What type of bonding is found in a water molecule?

• Covalent Bonding

• Gravitational Attraction

• Ionic Bonding

• Affinity for Oxygen

Neon is a noble gas, in Group 8. It has eight electrons on its outer shell. What is its valency number?

• 8

• 0

• 7

• 2

All the properties of ionic compounds are correct EXCEPT:

• Force of attraction between a cation and an anion

• Cation is positive and anion is negative

• Electrons are shared between the molecules

• Metals lose electrons which are gained by the non-metals

What are the elements which make up the formula Na₂CO₃?

• Nascium, Cobalt and Oxygen

• Sodium, Copper and Osmium

• Nitrogen, Carbon and Oxygen

• Sodium, Carbon and Oxygen