객관식
Which of the following choices correctly names both of the following ions:Mn5+ and P3–.
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5. Molecules and Compounds
Naming Monoatomic Anions
객관식
Which of the following represents the oxide ion?
A
O
B
O2–
C
O2
D
O3–
검증된 단계별 안내1
Understand that an oxide ion is a negatively charged ion formed when oxygen gains electrons.
Recall that a neutral oxygen atom has 8 protons and typically 8 electrons. To form an oxide ion, oxygen gains additional electrons.
Recognize that gaining two electrons results in a charge of -2, as each electron carries a charge of -1.
Identify the chemical symbol for oxygen, which is 'O', and note that the oxide ion is represented as 'O' with a charge of -2.
Conclude that the correct representation of the oxide ion is 'O2–', indicating the gain of two electrons and a resulting charge of -2.
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