consider the following elements represented by the symbols A, B, C D, E, and F: 1. Provide in a table the number of protons neutrons and electrons constituting each of the elements. 2. How many different elements are there? 3. Among these elements, are there any isotopes?

1. Here is a table showing the number of protons, neutrons, and electrons for each element:<br /><br />| Symbol | Protons | Neutrons | Electrons |<br />| --- | --- | --- | --- |<br />| A | 1 | 0 | 1 |<br />| B | 5 | 6 | 5 |<br />| C | 6 | 6 | 6 |<br />| D | 8 | 8 | 8 |<br />| E | 11 | 12 | 11 |<br />| F | 13 | 14 | 13 |<br /><br />2. There are 6 different elements represented by the symbols A, B, C, D, E, and F.<br /><br />3. Among these elements, there are no isotopes. Isotopes same element with different numbers of neutrons. In this case, each element has a unique number of protons, which defines them as distinct elements.