Chapter 23 - Chemical Bonding

Question 1

In what two ways can elements react to each other to obtain a full outer shell of electrons?

Answer 1

Ionic bonding

Covalent bonding

Question 2

Ionic bond

Answer 2

The force of attraction between oppositely charged ions in a compound

Question 3

Ionic bonding occurs when one atom ____ electrons and another atom ______ electrons

Answer 3

Ionic bonding occurs when one atom loses electrons and another atom gains electrons

Question 4

Ion

Answer 4

Charged group of atoms

Question 5

Give two examples of ionic bonds

Answer 5

Sodium and Chlorine

Magnesium and oxygen

Question 6

Covalent bond

Answer 6

Formed when electrons are shared between non-metal atoms

Question 7

Give four examples of covalent bonds

Answer 7

Hydrogen (H2)
Oxygen (O2)
Water (H20)
Methane (CH4)

Question 8

What are the properties of Ionic bonds?

Answer 8

○Solids
○High melting points
○Soluble in water
○Conducts electricity when molten/dissolved in water

Question 9

What are the properties of covalent bonds?

Answer 9

○Liquids/gases
○Low melting and boiling points
○Insoluble in water
○Don’t conduct electricity