GIANT COVALENT STRUCTURES GCSE

What type of bonding occurs between non-metal atoms?

• ionic bonding

• metallic bonding

• covalent bonding

Tags

NGSS.HS-PS1-1

What type of bonding occurs between non-metal AND metal atoms?

• ionic bonding

• metallic bonding

• covalent bonding

Tags

NGSS.HS-PS1-1

What type of bonding occurs between metal atoms?

• ionic bonding

• metallic bonding

• covalent bonding

Tags

NGSS.HS-PS1-1

Are covalent bonds strong or weak?

• strong

• weak

Tags

NGSS.HS-PS1-3

Covalently bonded substances consist of either simple molecules or giant covalent structures. What are simple molecules?

• molecules that contain only a few atoms held together by covalent bonds

• structures that contain many atoms, each joined to adjacent atoms by covalent bonds

True of false? Simple molecular substances have low melting and boiling points.

• True

• False

Tags

NGSS.HS-PS1-3

Why do simple molecular substances have low melting and boiling points?

• The intermolecular forces between simple molecules are weak.

• The covalent bonds holding the atoms together in a simple molecule are strong. A large number of covalent bonds hold the atoms together in simple molecules.

What happens when a simple molecular substance melts or boils?

• The weak intermolecular forces between the molecules break.

• Strong covalent bonds between the atoms of the molecule break.

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-5

Why do weak intermolecular forces between simple molecules result in low melting and boiling points?

• Little energy is needed to break the strong covalent bonds.

• Little energy is needed to break the weak intermolecular forces.

• Lots of energy is needed to break the weak intermolecular forces.

Tags

NGSS.HS-PS3-4

Simple molecular substances are often ________ or ________ at room temperature because they have low melting and boiling points.

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4