How many neutrons are in an isotope of selenium-83

A. 34
B. 83
C. 49
D. 117

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

Energy flows from the producer level to the level. is called

What’s #16 asking me and how do i solve it?