June 2023 NY Regents Chemistry Exam
11 Which changes in both charge and radius occur when an atom loses an electron?
(1) A negative ion is formed with a smaller radius than the atom.
(2) A negative ion is formed with a larger radius than the atom.
(3) A positive ion is formed with a smaller radius than the atom.
(4) A positive ion is formed with a larger radius than the atom.
Solution: An electron has a -1 charge. When an electron is lost, a positive ion will be formed (since there will be more protons (+1 charge) than electrons). Losing an electron will also decrease the radius of an atom.
Answer: 3
Prepare for the Chemistry Regents Exam: HERE
Contact us for chemistry tutoring: HERE