That would be phosphorus. It’s electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^3
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Answer:
Explanation:Are You From Milo?
Electrons and protons because they are essentially always the same
Ductility - a materials ability to stretch, ie if you pull it apart does it stretch to a wire.
density - ratio of volume to mass
conductivity - materials ability to conduct a current.
hopefully with these definitions you can figure out the answer.