Question
Asked Jan 24, 2020
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Write the symbol for the ion of each of the following. (Type your answer using the format [Rb]2+ for Rb2+, [Cs]+ for Cs+ and [NH4]+ for NH4+. )

1. Oxide

2. Aluminum

3. Calcium

4. Potassium

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Expert Answer

Step 1

The atoms will lose or gain the electrons in order to attain a stable electronic configuration as a noble gas or octet configurations.

Step 2

(1)

The oxygen atom has gained two electrons to the outer most shell to attain a stable electronic configuration. The negatively charged oxygen atom is called oxide ion.

The symbolic representation of oxide ion is shown below:

Chemistry homework question answer, step 2, image 1
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Step 3

(2)

The aluminum has lost three electrons from the outer most shell to attain the stable electronic configuration and ...

Chemistry homework question answer, step 3, image 1
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