A) G B) A D) J 17. What is the net charge of an ion that has 12 protons, 10 electrons, and 12 neutrons? A) 2- B) 1+ C) 1- D)

2+ 18. Each diagram below represents the nucleus of a different atom. 1p 1p 1n D E Q R Which diagrams represent nuclei of the same element? A) D, E, and Q B) Q, R, and E C) Q and R, only D) D and E, only 1p 2n 2p 2n