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Which ion could bond with a calcium ion (Ca^{2+}) to form a neutral ionic compound?
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- 1. Intro to General Chemistry4h 5m
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2. Atoms & Elements
Ions
Scelta multipla
What is the charge of a chloride ion?
A
-2
B
0
C
+1
D
-1
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Guida verificata passo dopo passo1
Recall that a chloride ion is formed when a chlorine atom gains an electron.
Understand that chlorine (Cl) is a halogen with 7 valence electrons and tends to gain 1 electron to achieve a full octet.
When chlorine gains 1 electron, it acquires an extra negative charge, resulting in a charge of -1.
Therefore, the charge of a chloride ion (Cl⁻) is negative one, written as -1.
This explains why the correct answer is -1, not -2, 0, or +1.
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