객관식
Which element on the periodic table has the greatest number of protons in its nucleus?
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객관식
What is the charge of the ion typically formed by barium (Ba) in ionic compounds?
A
2+
B
2-
C
1-
D
1+
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검증된 단계별 안내1
Identify the group of barium (Ba) in the periodic table. Barium is an alkaline earth metal located in Group 2.
Recall that elements in Group 2 typically lose two electrons to achieve a stable noble gas electron configuration when forming ions.
Since barium loses two electrons, the charge of the ion it forms is positive and equal to the number of electrons lost.
Therefore, the charge of the barium ion is written as \(\mathrm{Ba}^{2+}\), indicating a 2+ charge.
Conclude that the typical charge of the ion formed by barium in ionic compounds is 2+.
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