Types of Solids and IFA's

Which type of solid is hard, brittle, and nonconducting unless dissolved in H₂O?

• Ionic Crystal

• Covalent/Molecular

• Metal

• Network/Covalent

Which type of solid has mobile electrons in the crystal (sea of electrons)?

• Ionic Crystal

• Covalent/Molecular

• Metal

• Network Covalent

Which type of solid typically has the lowest melting point of the four types of crystals?

• Ionic Crystal

• Covalent/ Molecular

• Metal

• Network Covalent

Which is an example of an ionic crystal?

• Quartz
• NaCl
• Ammonia
• Iron

Tags

NGSS.HS-PS1-3

Which is an example of an covalent molecular solid?

• Diamond

• NaCl

• Carbon dioxide

• Iron

Which is an example of an metallic solid?

• Diamond

• NaCl

• Carbon dioxide

• Iron

Which is an example of an network covalent solid?

• Diamond

• NaCl

• Carbon dioxide

• Iron

What property gives metallic solids the ability to conduct electricity well, but not covalent network solids?

• Electrons in metallic solids are strongly bound in place
• Electrons in covalent network solids are freely moving around
• Covalent network solids are not bound to other atoms
• Metallic solids have many electrons that are not bound and can move about the solid

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

When intermolecular forces are weak, there is a ______ boiling point and it _______ conduct electricity. 

• does not; low 
• low; does not 
• high; does 
• high; low

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

Tags

NGSS.MS-PS1-4