High School

We appreciate your visit to How many protons neutrons and electrons are in the ion tex frac 197 79 text Au 3 tex A Protons 79 Neutrons 118 Electrons 76. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

How many protons, neutrons, and electrons are in the ion [tex]\frac{197}{79} \text{Au}^{3-}[/tex]?

A. Protons: 79, Neutrons: 118, Electrons: 76
B. Protons: 79, Neutrons: 118, Electrons: 79
C. Protons: 79, Neutrons: 118, Electrons: 82
D. Protons: 79, Neutrons: 118, Electrons: 118

Answer :

Final answer:

The gold ion 197/79Au³⁻ has 79 protons, 118 neutrons, and 82 electrons.

Explanation:

The ion 197/79Au³⁻ represents the gold ion with a charge of -3. To determine the number of protons, neutrons, and electrons, we look at the atomic number and mass number of gold. The atomic number of gold is 79, which tells us that it has 79 protons. The mass number of gold is 197, which is the sum of protons and neutrons. Subtracting the number of protons from the mass number, we can find the number of neutrons: 197 - 79 = 118 neutrons. Since the gold ion has a charge of -3, it means that there are 3 more electrons than protons. Therefore, the number of electrons in the gold ion is: 79 + 3 = 82 electrons.

Thanks for taking the time to read How many protons neutrons and electrons are in the ion tex frac 197 79 text Au 3 tex A Protons 79 Neutrons 118 Electrons 76. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada