Final answer:
The element with 53 protons and 74 neutrons is iodine, specifically, it is the isotope known as I-127.
Step-by-step explanation:
The element with 53 protons and 74 neutrons is iodine (I). The atomic number of an element is defined by the number of protons in its nucleus. Since the atomic number of iodine is 53, this is how we identify the element corresponding to your description. In addition, iodine naturally occurs with several isotopes. An isotope of an element has the same number of protons but a different number of neutrons. Iodine can have several isotopes, but the one with 74 neutrons has a mass number of 127 (since 53 protons + 74 neutrons = 127). Therefore, the isotope of iodine with 53 protons and 74 neutrons is known as I-127.