material (structure of matter part 2)

Crystalline solids do not have three dimensional repeated regular, ordered arrangement of their atoms

• true
• false

Crystalline solids have .......... dimensions

• 2
• 3
• 5
• 8

Crystalline solid is known as Supercooled liquid

• true
• false

all of the following is true about crystalline solids except

• have ordered arrangement
• have high internal energy
• have repeating pattern of arrangement of atoms
• have Long range order

amorphous solids can have some degree of localized range of order

• true
• false

amorphous solids have no slip planes

• true
• false

rubbery state during melting is a characteristic feature of Crystalline solids

• true
• false

the most common crystal system in dentistry is cubic and triclinic

• true
• false

metals and alloys are pure amorphous

• True
• False

which of the following is not a form of ceramics

• Amorphous + Crystalline
• Crystalline + Amorphous
• Crystalline
• Amorphous