Describe where metals and nonmetals are found on the periodic table

Non metals are all the way on the right side

Metalloids are the stair case

Metals are on the left side

d is the answer i came up with

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.