 
Arturo O. answered  06/06/20
Experienced Physics Teacher for Physics Tutoring
It is an ion because it has an extra electron. Answer (D) is correct.
Emma M.
asked  11/27/19Identify which of the following statements best describes a particle with 17 protons, 16 neutrons and 18 electrons.
A It is an ion because it has lost an electron.
B It is an atom because it has gained an electron.
C It is an atom that has lost a proton.
D It is an ion because it has gained an electron
 
Arturo O. answered  06/06/20
Experienced Physics Teacher for Physics Tutoring
It is an ion because it has an extra electron. Answer (D) is correct.
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