Which subatomic particle is negatively charged? 1.electron2.neutrons3.positron4.pro ton

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Drug abuse will not lead to physical and psychological dependence. true or false ?

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding