Final answer:
The isotope of copper with 29 protons, 34 neutrons, and 28 electrons is called 63Cu+, indicating a copper isotope with a mass number of 63 and a +1 charge due to the electron deficit.
Step-by-step explanation:
The isotope of copper in question contains 29 protons, 34 neutrons, and 28 electrons. The number of protons, which is 29, determines that the element is indeed copper (Cu), since atomic number is defined by the number of protons and for copper, the atomic number is 29. The number of neutrons can vary in isotopes, which gives us different isotopic forms of the same element. The number of neutrons is found by subtracting the atomic number (protons) from the mass number (protons + neutrons). Here, the isotope in question would have a mass number of 29 (protons) + 34 (neutrons) = 63.
The notation for this copper isotope would be 63Cu, but since the isotope has one fewer electron than protons, it carries a +1 charge making it an ion. Therefore, this copper isotope would be referred to as 63Cu+.