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Chapter 2: Problem 70

What is the symbol of an ion with 16 protons, 18 neutrons, and 18 electrons? What is the symbol for an ion that has 16 protons, 16 neutrons, and 18 electrons?

Short Answer

Expert verified
The symbol of both ions is \(S^{2-}\).

Step by step solution

01

Determine the element

Since the ion has 16 protons, it belongs to the element which atomic number is 16. Looking up the periodic table, the element with atomic number 16 is Sulfur (S).
02

Determine the ion charge

To find the charge of the ion, we need to subtract the number of electrons from the number of protons: \(16 - 18 = -2\). The ion has a charge of -2.
03

Write the ion symbol

With the element symbol (S) and the charge (-2), we can write the symbol as: \(S^{2-}\). Ion 2: 16 protons, 16 neutrons, and 18 electrons
04

Determine the element

Since the ion has 16 protons, it belongs to the same element as mentioned before, which is Sulfur (S).
05

Determine the ion charge

In this case, the difference between the number of protons and electrons is also \(16 - 18 = -2\). The ion has a charge of -2.
06

Write the ion symbol

With the same element symbol (S) and the same charge (-2), we can write the second ion symbol as well: \(S^{2-}\). The symbol of both ions is \(S^{2-}\).

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