객관식
Which of the following correctly identifies the cation and anion present in the compound NH4Br?
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2. Atoms & Elements
Ions
객관식
Which statement is true of all atoms that are anions?
A
They have a positive charge.
B
They have more electrons than protons.
C
They have more protons than electrons.
D
They have an equal number of protons and electrons.
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검증된 단계별 안내1
Recall that an atom is electrically neutral when it has an equal number of protons (positively charged) and electrons (negatively charged).
Understand that an anion is a type of ion that carries a negative charge.
Since the negative charge arises from an excess of electrons, anions must have more electrons than protons.
Therefore, any atom that is an anion will have a greater number of electrons compared to protons.
This means the true statement about all anions is: 'They have more electrons than protons.'
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