Chemistry AS Module 2.2 Foundations

How many electrons can the 4th shell hold?

How many electrons can an f orbital hold?

What sub-shells are found in the 3rd shell?

• s only

• s,p only

• s,p,d only

• s.p,d,f

What is the electronic configuration of oxygen?

• 1s²2s²2p³

• 1s²2s¹2p⁵

• 1s²2s²2p⁴

• 1s¹2s¹2p⁶

Predict the type of bonding in sulfur dioxide

• Covalent

• Ionic

• Metalic

Which of the following are properties of an ionic compound?

• High melting and boiling point

• Electrical conductivity

• Soluble in polar solvents

• All of the above

How many covalent bonds does carbon form?

• 1

• 2

• 3

• 4

What is the bond called when one atom supplies both the shared electrons to the covalent bond?

A substance melts at 1725^oC, does not dissolve in any solvent and does not conduct electricity, suggest what type of structure this is.

• simple molecule

• giant ionic lattice

• giant covalent lattice

• Metallic

A substance melts at 114^oC, dissolves in hexane and does not conduct electricity, suggest what type of structure this is.

• giant covalent lattice

• simple molecule

• giant ionic lattice

• metallic