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A lead ion has 82 protons and 80 electrons.

Which equation can be used to find the charge of the ion?

Choose 1 answer:

A. Ion charge [tex]=80-82[/tex]
B. Ion charge [tex]=82-80[/tex]
C. Ion charge [tex]=82+80[/tex]

Answer :

To find the charge of an ion, we need to consider the number of protons and electrons it has. Protons are positively charged, while electrons are negatively charged. The overall charge of the ion is determined by the difference between the number of protons and the number of electrons.

Here, we have a lead ion with:

- 82 protons
- 80 electrons

To calculate the charge of the ion, subtract the number of electrons from the number of protons:

[tex]\[ \text{Ion charge} = \text{Number of protons} - \text{Number of electrons} \][/tex]

Substituting the given values:

[tex]\[ \text{Ion charge} = 82 - 80 \][/tex]

[tex]\[ \text{Ion charge} = 2 \][/tex]

Thus, the charge of the ion is +2. Therefore, the correct equation to find the charge of the ion is:

(B) ion charge [tex]\( = 82 - 80 \)[/tex]

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