Chapter 6: Materials made of Molecules Flashcards
1
Q
explain why covalent substances have a low BP and MP and nonconductivity
A
BP and MP: the molecules are held together by weak intermolecular forces that can be overcome with little energy
nonconductivity: the molecules do not contain any free moving charged particles.
2
Q
how many electrons can boron and beryllium have in their valence shells
A
boron: 6
beryllium: 4
