Ineed the definition of metallic bonds i can not find the exact definition. 20 points and briainest

what is a metallic bond?

an attractive force between delocalized electrons and metal cations
an attractive force between mixtures composed of two or more metals
an attractive force between nuclei that causes metal atoms to exchange electrons
a bond between metals where electrons are transferred between metal ions, and are rigidly set in formation

Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet