Answer: building block of matter was a particle called the atom.
Explanation: I hope this helps:)
Answer:
1) C
2)A
3)D
Explanation:
London forces are common to all molecules, it results from momentary shifts in electron distribution in molecules. When molecules possess a permanent dipole, dipole-dipole interaction is the dominant intermolecular force. However, for compounds in which hydrogen is bonded to highly electronegative element, hydrogen bonding is important.
