PLEASE ANSWER

A student is investigating with magnets. The student uses a bar magnet, a plastic ruler, and a paper clip to perform her investigation. The student places the bar magnet at different distances from the paper clip along the ruler and observes if the paper clip is attracted to the magnet. Her set up and results are shown.

Which argument can the student make using the evidence in her table?

A. Magnetic fields exist between objects that are not in contact.
B. Magnetism depends on the materials of the objects.
C. Magnetism increases as the distance between objects increases.
D. Magnetic fields are strongest at the poles of the magnet.

Option D. Magnetic fields are strongest at the poles of the magnet.

Explanation:

Magnets produces magnetic fields around it. Magnetic field is that area where material observed attractions or repulsion of the magnet. Magnetic forces are very strong at the poles and weaker at the center. When the distance increases between magnet and metals, the attractive force becomes weaker and the magnet is unable to attract.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence