Crystals which are mainly formed by ionic bonding:
A: high melting point
B: poor plasticity
C: low hardness
D: solid conductive
E: liquid non-conductive
A: high melting point
B: poor plasticity
C: low hardness
D: solid conductive
E: liquid non-conductive
举一反三
- In an ionic solid, positive and negative ions are bound in the lattice by ionic bonding forces.
- When the solid fat index is below 5%, the proportion of liquid fat in the fat is too high, the fat is too soft, and the plasticity is not good.
- Which of the following is NOT an advantage of steel? A: Formability B: Joinability C: Paintability D: Repairability E: Low melting point
- Ionic bonding is formed by ( ) A: valence electron transfer B: shared electron pair C: free electron and cation D: attraction of the electric dipoles
- Which of the following are characteristics of the steel structure? A: High strength and low weight B: Good plasticity and toughness C: Easy to manufacture and construct D: Weak corrosion resistance