Final answer:
The element with 7 protons, 6 neutrons, and 6 electrons is Carbon-13, an isotope of carbon which is identified by its 6 protons and distinguished by the number of neutrons, which in this case is one more than the standard Carbon-12 isotope.
Step-by-step explanation:
An element with 7 protons, 6 neutrons, and 6 electrons is known as the isotope Carbon-13. The element carbon always has 6 protons, which defines its place in the periodic table with an atomic number of 6. The number of neutrons can vary, which results in different isotopes of carbon.
Normal carbon, or Carbon-12, has 6 neutrons, while Carbon-13 has one additional neutron for a total of 7. This isotope still has 6 electrons in a neutral atom, maintaining the charge balance.
Just as a reference, Lithium-6 would have 3 protons, 3 neutrons, and 3 electrons, and its mass number would be 6. Elements are defined by the number of protons in their nucleus.
Thus, an atom with 6 protons is carbon, and in this case, with 7 neutrons, it is the Carbon-13 isotope, which is commonly used in scientific studies.