6. "The electric field caused by an electron is weakest near the electron" is FALSE.
7. "An electric field becomes weaker as distance from the electron increase" is TRUE.
Step-by-step explanation:
The "electrical field" covers the electrical charge and exerts, attracts or repels other charges in the field.The electric field caused by an electron is strongest near the electron while it become weak as distance from the electron increase.
The reason behind is, at a point the direction of the field line is at that point the direction of the field. The relative magnitude of the electric field will be proportional to the field line density. The field is strongest where the field lines are near together and when the field lines are at increasing distance the field is weakest.