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Fill in the blanks to complete the table. Symbol Ion Formed Number of Electrons in Ion Number of Protons in Ion Ca Ca2+ ______ ______ ______ Be2+ 2 ______ Se ______ ______ 34 In ______ ______ 49
2. Atoms & Elements
Ions
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Which statement is true of all atoms that are anions?
A
They have more protons than electrons.
B
They have an equal number of protons and electrons.
C
They have more neutrons than protons.
D
They have more electrons than protons.
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Understand the definition of an anion: An anion is a negatively charged ion, which means it has gained one or more electrons.
Recall that atoms are neutral when they have an equal number of protons (positively charged) and electrons (negatively charged).
When an atom gains extra electrons, it becomes negatively charged because the number of electrons exceeds the number of protons.
Analyze the given statements: The statement 'They have more electrons than protons' aligns with the definition of an anion, as gaining electrons results in a negative charge.
Conclude that the correct statement about anions is that they have more electrons than protons, which is why they carry a negative charge.
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