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Which element possesses a -2 charge when it combines with other elements?
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Multiple Choice
How many electrons would the cadmium ion possess?
A
50
B
48
C
46
D
52
E
30
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검증된 단계별 안내1
Identify the atomic number of cadmium (Cd), which is 48. This means a neutral cadmium atom has 48 electrons.
Determine the charge of the cadmium ion. The problem does not specify, but common cadmium ions are Cd²⁺.
Understand that a Cd²⁺ ion means the cadmium atom has lost 2 electrons.
Calculate the number of electrons in the Cd²⁺ ion by subtracting 2 from the original 48 electrons: 48 - 2.
Conclude that the Cd²⁺ ion possesses 46 electrons.
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