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What is the charge of the sodium ion (Na)?
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Periodic Table: Charges
Multiple Choice
What is the charge on the barium ion (Ba)?
A
2+
B
2-
C
1-
D
1+
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검증된 단계별 안내1
Recall that barium (Ba) is an alkaline earth metal located in Group 2 of the periodic table.
Elements in Group 2 typically lose two electrons to achieve a stable electron configuration, forming ions with a charge of 2+.
Since barium loses two electrons, its ion will have a charge of +2, written as Ba^{2+}.
The charge is positive because electrons are negatively charged, and losing electrons results in a net positive charge.
Therefore, the charge on the barium ion is 2+.
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